Improve git-bash and powershell support

[ath0mas]

It seems interactive use of bump does not work on Windows.

• with git-bash, command stops as soon as interactive prompt is expected to be displayed, showing "Cannot read property 'get' of undefined" and exiting
• with powershell, first interactive prompt is displayed, validated, action is applied on project, but command stays like waiting for input not following nor exiting

basic setup:

mkdir bump-foo && cd bump-foo
npm init private && git init && git add . && git commit -m "initial commit"

then trying bump fails:

                $ npx bump
(git-bash)
                Cannot read property 'get' of undefined
(powershell)
                ? Select an increment: (Use arrow keys)
                  major
                > minor
                  patch
                  premajor
                  preminor
                  prepatch
                  prerelease
                  custom
                ? Select an increment: minor

bump minor fails:

                $ npx bump minor
(git-bash)
                Bumping the version...
                Updating the changelog...
                Cannot read property 'get' of undefined
(powershell)
                ? No changes detected, bump anyway? (Use arrow keys)
                  No
                > Yes
                ? No changes detected, bump anyway? Yes
                Bumping the version...

bump minor --force runs fine 😃:

                $ npx bump minor --force
                Bumping the version...
                Updating the changelog...
                Making the commit...
                Tagging the commit...

environment:

• Windows 10
• Node 14.2.0 Current / 12.16.3 LTS
• NPM 6.14.4

[fabiospampinato]

@ath0mas could you try if v3 fixes this for you?

[ath0mas]

Not much time for now but sure I'll try v3 in 10 days or so 👍

[ath0mas]

Working fine with git-bash and powershell! 👍

---

To report about my tests:

• with my previous setup, I always have ✖ Unsupported repository ; looking into the code, I found that a package.json without a name entry is rejected
  • so I manually add a name into my package.json and it works
• then I get stuck with an infinite Tagging the commit message :/ ; stopping it results in the commit to have been created but no tag

  
  $ bump
  ✔ Select an increment: minor
  ✔ No changes detected, bump anyway? Yes
  ✔ Version bumped to "0.2.0" successfully
  ✔ Commit made successfully

• Tagging the commit...

[fabiospampinato]

@ath0mas to glarify, the Tagging the commit step is still not working properly for you on the latest version of this package, right?