Unable to install openjdk8 on Travis

[ggrossetie]

Expected feature release number in range of 9 to 15, but got: 8

[ggrossetie]

The build is now failing for another reason:

$ git add .
after_script.2
0.00s$ git config user.email "${GIT_EMAIL}"
after_script.3
0.00s$ git config user.name "${GIT_NAME}"
after_script.4
0.01s$ git commit -m "updating outputs"
*** Please tell me who you are.
Run
  git config --global user.email "you@example.com"
  git config --global user.name "Your Name"
to set your account's default identity.
Omit --global to set the identity only in this repository.
fatal: empty ident name (for <>) not allowed
after_script.5
0.00s$ git push -f "${GIT_URL}" gh-pages > /dev/null 2>&1
Done. Your build exited with 1.

@rwinch Do we really want to commit from the CI? I think that GIT_NAME and GIT_EMAIL should be defined on Travis.

[rwinch]

Thanks for the PR...The parameters are defined within travis from our side.

[ggrossetie]

Ok it seems to be working on master but there's another error:

Passing through unknown backend: revealjs
(NoMethodError) undefined method `syntax_highlighter' for #<Asciidoctor::Document:0x18bd893e>

I will see what I can do :wink:

[rwinch]

Thanks...You are making progress which is the important thing :)