Remove the trailing slash.
Update --version short flag to -V instead of -v.
Version bump inside chruby.sh.
Recommend users set the default ruby in .bash_profile/.zprofile.

* This ensures that the Ruby will only be set when spawning login
  shells, and avoid blowing away the current Ruby when spawning
  sub-shells.
Recommend adding auto.sh to .bashrc over .bash_profile.

* auto.sh now works in non-interactive mode.
Match the --version output of ruby-install.
Make sure to unset RUBY_AUTO_VERSION

Commit 1204c0642675d82f6132c06f17aa899cb6ecf5e5 made modifications which
renamed RUBY_VERSION_FILE to RUBY_AUTO_VERSION. This make sure we unset
the proper variable.
Change README.md

Emacs seem to be listed twice under Integration. This remove one of them
while preserving the alphabetical order.
Merge pull request #183 from KevinSjoberg/fix-readme

Change README.md
Merge pull request #181 from KevinSjoberg/master

Make sure to unset RUBY_AUTO_VERSION
Prepend functions with "function" to match guidelines (@zendeavor).
Mention where our system detect code came from.
Use the new RUBY_AUTO_VERSION variable in tests.
Use a better name to avoid matching against ~/.rubies/foo.
Use (( )) for arthimetic expressions (@zendeavor).
Prefer $(< ...) over $(cat ...) (@zendeavor).
Use != as it is available on Bash 3 (@havenwood).
Make sure $RUBY_ROOT is quoted. (@zendeavor)
Quote the String used in the fuzzy match. (@zendeavor)
Use ${path##*/} instead of basename. (@zendeavor)