updated Ruby version from 1.9.3-p374 to p385
Merge pull request #91 from havenwood/patch-6

updated Ruby version from 1.9.3-p374 to p385
Version bump to 0.3.3.
Invoke ruby using the fully qualified path to avoid aliases.
Fix typo.
Silence stderr of which.
Added a description.
Added a description.
Renamed MRI_VERSION to RUBY_VERSION.
Naming.
Only set $PROMPT_COMMAND if we are running in bash.
Include preexec_functions and precmd_functions for zsh.
Updated the ChangeLog for 0.3.3.
Added Wil Moore's endorsement (issue #98).
Change MRI Ruby version used in README from 327 to 385
Merge pull request #100 from mhutchin/master

Change MRI Ruby version used in README from 327 to 385
Sanitize PROMPT_COMMAND before appending to it (issue #99).
Re-add the check if chruby_auto was already appending to PROMPT_COMMAND.
Updated the ChangeLog for 0.3.3.
Added PGP signature for v0.3.3