'rails' command should not be run with bundle exec

auto-upadate feature will now reset the epoch so that if a user doesn't say yes, it won't ask them again for a while. fixes #1240

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/

New theme af-magic.zsh-theme

Remove bogus "-" from nomz="ps -aux" alias.

Escape whitespace for Sublime Text plugin

sublime pluginn : Added alias for Sublime Text 2 on Linux

Added fasd plugin

[Plugin] Virtualenvwrapper: Added another path

provide plugin for rbfu (yet ruby version switcher)

Explicitly tell rbenv to use zsh

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.

Info from http://procps.sourceforge.net/faq.html .

added jruby plugin

Fix finding git issue.

Fix finding git issue. http://stackoverflow.com/questions/592620/check-if-a-program-exists-from-a-bash-script

rbenv plugin now uses 'brew --prefix rbenv' command to find rbenv folder

Load symlink custom files

correct the ruby version label of the 'nebirhos' theme for rbenv

Steef theme - Improved git untracked file detection

Readlink is different on OS X

Fixed unmached " in yum plugin

According to @graywh's comment on:
https://github.com/sstephenson/rbenv/issues/185

Make the 'd' alias only show the directories that can be cd'd to using the number aliases.

Add dircycle plugin: enables cycling through the directory stack