* Plugin for iTerm2 on OSX

iTerm2 is a popular terminal emulator for OSX (https://www.iterm2.com).

The plugin currently implements one function, iterm2_profile, which
allows easily changing the currently selected user settings profile,
without creating a new tab or window, just by calling the function.

For example, this is handy for switching from a dark to a light colored
profile without having to re-open anything.

In addition, it also works within tmux running inside iTerm2.

* iTerm2 Plugin: Run any iTerm2 command

Refactored the plugin so that it can run arbitrary iTerm2 commands.
Should work with any of the supported commands, see
https://iterm2.com/documentation-escape-codes.html

* iTerm2 Plugin: Add functions to change tab color

* Fix ubuntu ag alias clashing with the silver searcher

* Add aliases for git apply and git merge --abort

The gpg-agent plugin did not work for gpg versions above or equal to
2.1 because of the `--write-env-file` option deprecation. This new version
works fine and also enables the ssh-agent support only if it is enabled in the
gpg-agent config file.

* speed up chruby plugin by eliminating(as much as possible) calls to brew

* speed up aws plugin by eliminating(as much as possible) calls to brew

Resolves: #6237

Expanded Terraform plugin with function that can be used to show workspace name in the zsh prompt

* Update wd plugin to v0.4.5

* [wd] Update wd plugin to v0.4.6

This is the default behavior of rbenv and what users are expecting
most of the time.

It allows users to have their own set of rubies and gems. It also
prevents losing all rubies when rbenv is updated using Homebrew which
is not true when RBENV_ROOT is set to /usr/local/opt/rbenv.

ag is a famous command just like grep.

* README.md: shit load -> shit-load

* README.md: shit-load -> shitload

It is possible to pull and push branches to/from origin

* Update for latest rustc

* Some debug option updates

* Add some cargo flags

* Fix bug in cargo plugin

* [wd] Update wd plugin to v0.4.3

* [wd] Update wd plugin to v0.4.4

The old preview on Skitch is no longer available (closed account?). The new preview is on a free Flickr which might last longer. ?

Merge branch 'Random_Theme_From_List' of https://github.com/Gnouc/oh-my-zsh into Gnouc-Random_Theme_From_List