Update plugins/rvm/rvm.plugin.zsh

1) be gentle - first git pull request
2) added ruby 2.0.0 alias and function
Support for opening tabs and windows in the same This fixed #1498 for me on Mountain Lion
SBT and Scala plugins.

The SBT (Simple Build Tool: scala-sbt.org) plugin is an original
work of mine.
The Scala (scala-lang.org) plugin was taken from zsh-lovers.
Update plugins/extract/extract.plugin.zsh

Cause unrar to preserve directory structure. (Why is only unrar different?!)
Merge branch 'master' of https://github.com/robbyrussell/oh-my-zsh
pipe git version check error to /dev/null (for when git doesn't exist)
Disable ssh-agent support if another ssh-agent is already running.
Added --quiet to suppress message about gpg-agent already running.
Fix Symfony2 command completion 'permission denied'

app/console by default (if you create a new Symfony project via composer create-project or by downloading it from symfony.com) is not executable. Therefore I get the following error:

sf2 _symfony2_get_command_list:1: permission denied: app/console 
_symfony2_get_command_list:1: permission denied: app/console
_symfony2_get_command_list:1: permission denied: app/console

To make command completion work without changing app/console you just have to let php run it.
Starting tmux plugin with basic config variables.
Adding main function and alias to tmux plugin.
Now checking for 256 color terminal in tmux plugin.
Tmux plugin now just runs tmux if any extra args are given.
Adding comments to tmux plugin.
Enabling autostart of tmux in tmux plugin.
Adding helper tmux config files to tmux plugin.
Fixing typos, logic, and gremlins in tmux plugin.
Checking environment instead of local variable for fixing term in tmux plugin.
Checking if already in tmux before autostarting in tmux in tmux plugin.
Adding option to prevent autostarting tmux more than once in the same session.