Update pip plugin to last stable release

Adds the following aliases:

```zsh
alias dco='docker-compose'
alias dcr='docker-compose run'
alias dce='docker-compose exec'
```

And sorts the aliases similar to `docker-compose help` order

* Add copybuffer function and keybinding:

binds ctrl-o to copy the command line buffer to the system clipboard.

* Add README

Fix completion of files with hyphens and underscores

This deletes the previous hack that allowed completing files with
the extension: e.g. `abcd.z` to `abcdefg.z`.

It is still possible to use `abcd[TAB].z`, and hyphens or underscores
are very much more important than this other trick.

Source:
https://github.com/robbyrussell/oh-my-zsh/issues/1398#issuecomment-169163149Signed-off-by: NMarc Cornellà <marc.cornella@live.com>

Add "-DgroupId= -DartifactId= -Dversion= -Dpackaging=jar -Dfile=" to options for
"install:install-file" for when you need install a local jar file.

Closes #5376.

Closes #5299

Plugin command-not-found on Arch Linux returns 0 if git or bzr is found in repos, hence outputting unwanted pkgfile output.

Checking if the commands exist first fixes all such issues.

Plugin command-not-found on Arch Linux returns 0 if git or bzr is found in repos, hence outputting unwanted pkgfile output.
Checking if the commands exist first fixes all such issues.

https://github.com/docker/docker/blob/be9e3f59e625a7be05f21a23f6debfb3f6728573/contrib/completion/zsh/_docker

See https://github.com/docker/docker/blob/master/contrib/completion/zsh/_dockerSigned-off-by: NBrian Goff <cpuguy83@gmail.com>

the agnoster theme is now able to render basic information
if the user is currently residing inside a bazaar folder.
if so, it will render a green promt segment with "bzr" and
the current revision number in it. if there are untracked
files, the bar will be rendered in yellow. if there are
changes to already tracked files, a + character will be
printed.

The ruby prompt info was not interpolating properly. Switching to use
 ruby_prompt_info helper. This addresses the issue.

versions is missing list is missing

by discarding directories or files with permissions already correctly set

* initial spotify control

* volume up/down added

* add info, share and status option

* add color echo

* change pause to play/pause

* add Search Option for album,artist and tracks

* add search option for playlist

* fix showStatus output

* complete help

* readme updated

* seach show Url of song

The command ‘rails console —sandbox’ loads our Rails application,
connects to the database and automatically starts a database
transaction. All database operations performed within this console
session are rolled back upon leaving the console. Reference -
https://www.codeschool.com/blog/2014/06/17/rails-console-sandbox/

The alternative is using tools that aren't available everywhere.
The latest report is that cygwin/msys2 doesn't have pgrep.

Fixes #5418.

Removing as this is now installed as part of homebrew automatically and this
version is out of date. See
https://github.com/Homebrew/brew/blob/master/share/zsh/site-functions/_brew

The good completion is now part of Homebrew so this one  will always be outdated.

See https://github.com/Homebrew/brew/pull/407
and https://github.com/Homebrew/brew/pull/936.

* Improve gradle plugin task parsing

Added _gradle and _gradlew as symbolic links to gradle.plugin.zsh,
otherwise the plugin was not properly loaded.

Output from `gradlew tasks --all` is now parsed in two levels,
first we find segments between `------...` and a newline.
Second, all those lines are parsed and cleaned using awk
and added to .gradletasknamecache.

Tested on gradle 2.13, and gradlew 2.14.

* Remove .gradletasknamecache before regenerating it

Remove the .gradletasknamecache file to avoid having an unnecessary
newline at the top of the file when regenerating it.

* Improve gradle task parsing by writing .gradletasknamecache atomically

Previously the .gradletasknamecache file was written line by line inside a parsing loop,
which could cause errors such as half-written cache files if the process was aborted.

This also removes the need of deleting the .gradletasknamecache file before parsing.

* Fix battery plugin when acpi writes to stderr
* Make stderr redirection in battery plugin more idiomatic

* Adds -DskipITs to auto completion list

* Adds integration test completion

* Update the docker completion script with the official docker zsh completion script
* Update README

Removed by mistake in 0950f9c5.