Some upgrades to the install script

[samczsun]

Shiny features!

• install all versions starting from 0.4.0 (using some prebuilt binaries)
• install a range of versions (use --after and --before, fixes #28)
• detect if a version is already installed, and if so don't redownload (but you can override it with --force)
• sort installed versions by version

[ESultanik]

I get this output when building the Docker container:

Step 9/25 : RUN bash /install_solc.sh
 ---> Running in 0aaeedaab520
/install_solc.sh: line 3: semver.sh: No such file or directory
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.11
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.10
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.9
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.8
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.7
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.6
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.5
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.4
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.3
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.2
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.1
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.6.0
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.17
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.16
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.15
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.14
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.13
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.12
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.11
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.10
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.9
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.8
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.7
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.6
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.5
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.4
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.3
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.2
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.1
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.5.0
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.26
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.25
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.24
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.23
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.22
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.21
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.20
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.19
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.18
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.17
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.16
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.15
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.14
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.13
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.12
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] successfully downloaded solc 0.4.11
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.10
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.9
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.8
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.7
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.6
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.5
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.4
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.3
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.2
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.1
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.4.0
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.3.6
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.3.5
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.3.4
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.3.3
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.3.2
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.3.1
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.3.0
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.2.2
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.2.1
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.2.0
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.1.7
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.1.6
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.1.5
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.1.4
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.1.3
/install_solc.sh: line 67: semverLt: command not found
/install_solc.sh: line 69: semverLt: command not found
/install_solc.sh: line 71: semverLt: command not found
[+] failed to download solc 0.1.2

Is that expected and/or a problem?