Show the correct name of the readme file (instead of showing always README.md).
Added asciidoctorj dependency.
Initial support for rendering asciidoc files.
Support plain text readme files (with .txt or no extension).
Enabled rendering of page document title.
Merge branch 'master' into asciidoctorj

Conflicts:
	src/main/twirl/repo/files.scala.html
Merge branch 'master' into asciidoctorj
Rewrite relative links to reflect the base url of the repo.
Enabled rendering of renderable files in blob view.
Support relative links in asciidoc files.
Fix page-relative links, e.g. in TOC.
Removed commented out code.
Merge branch 'master' into asciidoctorj

Conflicts:
	src/main/scala/app/RepositoryViewerController.scala
Merge pull request #288 from lefou/asciidoctorj

Support AsciiDoc markup for all files + Plain text Readme's