virtualenvwrapper: Deactivate only if in virtualenv

Improved ant completion

[Plugin: cake] switch newer-than logic to get the desired behavior

Move pwd update output to precmd to avoid contamination

As suggested in https://github.com/robbyrussell/oh-my-zsh/pull/3329#issuecomment-72062236

Make use of ant's project help feature instead of trying to parse XML with regex (see: http://stackoverflow.com/a/1732454/740787).
This is a behavioral change that does a few things:
 • adds support for ant imports, which were previously not recognized as possibly containing targets
 • supresses targets with no description, as these are conventionally for internal use only

Regen .ant_targets only if it's newer than build.xml? Yeah, that seems wrong.

In the old version, the function returned true (0) if the cache file
was newer than the Cakefile, which was *always* unless the Cakefile
had been updated. Therefore we generated the file every time unless
the Cakefile was updated, which was precisely when we needed to
regenerate the cache file.

Now it generates the cache file only when the Cakefile has been
updated.

Allow custom cache dir

Fast installation time by shallow copying git repo

Fix Plugin commands

activate django plugin on command "django-admin"

contaminating script/function output

Use `--depth=1` to clone just the lastest version rather than every version in git.

activate django plugin on command "django-admin"

termsupport: add chpwd hook for setting pwd in Apple Terminal.app

We are running oh-my-zsh on a shared install and the only issue is each
user having a custom cache dir. This will allow us to set the cache dir
to ZSH_CACHE_DIR=~/oh-my-zsh/cache/ .

If user manually deactivates the virtualenv when using this mode, zsh
will produce following error:

    deactivate:12: command not found: virtualenv_deactivate

To avoid this, check that the VIRTUAL_ENV flag is set before trying to
automatically deactivate the virtual environment.

Fixes #2185

mira theme shows active node, ruby and java versions

Added Yii2 command completion

additional tmux aliases

Fix chruby plugin to not complain if chruby is *not* installed

Throw an error message when $WORKON_HOME is not set

Fixed output issues webith websearch plugin.

Disable sourcing .profile when checking for available updates

added exec command to docker plugin

Remove deprecated brew commands, update core commands

Added Xcode alias for deleting Derived Data.

autojump installed from github has mv the autojump.zsh to $HOME/.autojum...

Add quoting to nvm.sh