provide plugin for rbfu the ruby version switcher

Evaluates $(rbfu --init --auto) if rbfu is installed on the system,
also has a custom rbfu-rubies method which lists the installed
rubies which are available to rbfu.

For compatibility with themes, also creates the rvm_prompt_info
function, so existing themes should work out of the box.
Merge pull request #1170 from dipth/master

Explicitly tell rbenv to use zsh
Merge pull request #1209 from lwe/rbfu-plugin

provide plugin for rbfu (yet ruby version switcher)
Merge pull request #1193 from bameda/master

[Plugin] Virtualenvwrapper: Added another path
Merge pull request #1127 from a-b/master

Added fasd plugin
Merge pull request #1122 from varunkvv/master

sublime pluginn : Added alias for Sublime Text 2 on Linux
escape whitespace
utilize sublime's embedded command line binary
Merge pull request #1216 from joshvermaire/patch-1

Escape whitespace for Sublime Text plugin
Merge pull request #1206 from Eustachy/upstream

Remove bogus "-" from nomz="ps -aux" alias.
Merge pull request #1200 from andyfleming/master

New theme af-magic.zsh-theme
Add very basic virtualenv plugin

checks for $VIRTUAL_ENV and provides to basename in a function for the prompt.
vagrant uses 'ssh-config' command, not 'ssh_config'
'rails' command should not be run with bundle exec

http://blog.wyeworks.com/2011/12/27/bundle-exec-rails-executes-bundler-setup-3-times
http://yehudakatz.com/2011/05/30/gem-versioning-and-bundler-doing-it-right/
modify themes/jnrowe.zsh-theme, add host directive "Ξ (mbsd) ~ →"
Merge branch 'master' of https://github.com/robbyrussell/oh-my-zsh
merge from upstream master
check for knife.rb in cwd

this is useful when managing multiple chef servers
add maven zsh autocomplete plugin, copy from juvenxu's bash maven autocomplete plugin
Bwana plugin for reading man pages in Safari