Use ruby-2.0.0-p353 for chruby tests
Merge pull request #240 from ilikepi/test_with_ruby_2.0

Use ruby-2.0.0-p353 for chruby tests
Updated the instructions on how to avoid loading chruby under dash (issue #204).
Absolute gitignore paths.
Ignore /test/home/.zcompdump.
Removed test/home/.zcompdump.
Unset empty GEM_PATH last.
No point in removing GEM_HOME/GEM_ROOT from GEM_PATH, if they are empty.
Merge the `require 'rubygems'` and `puts GEM_ROOT` lines together.
Ruby-install v0.4.0
Merge pull request #251 from gazay/ruby-install

Ruby-install v0.4.0
Added rpm/sources with the md5 of chruby-0.3.8.tar.gz.
Added an rpm task for building rpms.
Fixed the dates in the rpm changelog.
Fixed ruby versions used by the benchmarks.