Add shortcuts for mac keyboards as an alternative to alt+left
abd alt+right: mac users can now use opt+left and opt+right.

Minor spelling mistake.

Add match for `MM` (result of `git commit -p` on a single changed file) to git_prompt_status (#3632)

* Remove older shpotify code from the macOS plugin

* Add Shpotify 2.0.1 from the upstream repository at https://github.com/hnarayanan/shpotify/releases/tag/2.0.1

* Wrap the Shpotify script in a function and import into the macOS plugin

* Fix import path of the shpotify script

* Add shpotify permission notice in the macos plugin rREADME

* Merge with the upstream shpotify project

- Fix playlist playback
- Add a 'stop' command

Added some Gem command shorthands, and ruby shorthand

With zsh 5.4 a simple "local FLAGS" meant as an array must be explicitly declared so.  This fix avoids the dreaded "parse_git_dirty:3: FLAGS: attempt to assign array value to non-array". (#6414)

* Fix the terraform function name

Current function name do worse. I always use `terr<TAB>` and before those prompt it was add space in the end. Now because we have multiple functions and binaries started with terraform there are no space.

* Updated terraform readme

Updated the name of new function name

`pacaur -Syua` only updated AUR pakcages, wihch is incompatible with semantics of `pacupg` and `yaupg`. Removing `-a` here it would work for both main repos and aur.

Added 'agli' to list all installed packages.
Added 'aglu' to list available updates only.

$GNUPGHOME variable was used incorrectly and caused a grep error when
set.

Updating template and README to list plugins on individual lines vs one long one. Easier scanning for you and me.

* 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