Changed brew cmd to properly report if awscli is installed via homebrew
Added VIRTUAL_ENV_DISABLE_PROMPT to steeef.zsh-theme

This stops the virtual env name from being printed before it is actually being
used in the zsh prompt.
Merge simplified superjarin theme
Fix autojump script to support Nix installations
Fix Yosemite broken zsh where $PATH var does not get appended correctly.

Sourcing oh-my-zsh immediately after export PATH.
use pigz if available in extract plugin
Merge pull request #3309 from jarinudom/superjarin

Simplify superjarin theme and support chruby
Merge pull request #3283 from jaapz/master

Added VIRTUAL_ENV_DISABLE_PROMPT to steeef.zsh-theme
Merge pull request #3265 from thii/fix-yosemite-broken

Fix Yosemite broken zsh
Merge pull request #3092 from MWers/aws-brew-issue

[aws plugin] Changed brew cmd to properly report if awscli is installed via homebrew
Merge pull request #2871 from wrboyce/extract-pigz

use pigz if available in extract plugin
Merge pull request #2448 from gawashburn/master

Fix autojump script to support Nix installations
Do not use GREP_OPTIONS to set grep parameters

From grep version 2.21, using environment variable `GREP_OPTIONS' to
set common parameters to grep calls is deprecated.

As an alternative, we use a custom function to pass in our defined
`GREP_OPTIONS`, while at the same time preserving any aliases that
called grep.

If we choose the alias way as suggested in the grep documentation,
we'll overwrite any already defined grep aliases, or get overwritten
by any subsequently defined user aliases.
Brings all directory stuff to directories.zsh

- Cleans out aliases.zsh.
- Removes unneeded cd function.
Pushes autoenv code to its plugin.

Sources the activate.sh file or informs the user, that its not
available.
Overriding the cd function, as it was formerly done, is not needed
anymore, activate.sh does this by itself.
Refactors history alias and moves it.

More compact case statement instead of the ugly if elif... else
statement. Moves it to history.zsh
Moves remaining aliases to misc and deletes file.

There were only three aliases left in aliases.zsh
File deleted!
Moves a bindkey call from misc to key-bindings.
Deletes dot aliases from common-aliases.

They are implemented in lib anyway.
Fix a typo