* Improve UX for Spotify commands in osx plugin

Spotify command UX is a bit weak for people who live and work almost entirely in shells.
- `spotify quit` should not open Spotify if it is not already running. Should confirm that Spotify is indeed not running.
- `spotify quit` should not blow away the user's shell once Spotify is quit. This can be a disruption to work flow.

This PR looks to add a few little checks which will help improve this experience.
This PR also adds a space to line 477 between `break` and `;;` for consistency. Doesn't seem like a big enough change to put in its own PR.

* Rearranging output as per peer feedback

* osx plugin's spotify: change quitting w/ closing

Closing is more idiomatic English.

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

* Add mvn asciidoctor commands
* Fix formatting in mvn plugin

* Add a React Native alias, and one to start the web server

* Reorganise aliases in react-native plugin

* Update README for react-native plugin:

  Fix format and add a brief description
  Add missing aliases in react-native plugin README

Although `gaa` (git add --all) is cool, it stages every file, tracked or
not, if it is not on .gitignore.

Sometimes we want to just stage everything we are working on, that is
already tracked. For that reason, 'gau' can save us some time.

Closes #5683

Currently, only tasks with complete subproject specifier are added to
.gradletasknamecache. Gradle commands can be called for all (sub-)projects
they are defined for, using their name as defined in the subproject, here
called "simple" task names. One example is "gradle clean".

This patch adds support for parsing out those "simple" task names from the list
of fully specified task names. The .gradletasknamecache file will contain
both the fully specified names, and the "simple" names for your autocompletion
pleasure.

Changing from `zcat` to `zgrep` because some `zcat` implementations do not work
if the file is not compressed.

Closes #5681

* Add plugin for Swift Package Manager
* swift-package-manager: Rename plugin to 'swift-pm'

* yarn completion

Sourcing oh-my-zsh happens in zshrc, which will override settings of
profile and zshenv.  Treat misc values, `PAGER` and `LESS`, as default
settings without overriding existing values.

Fixes: #1, robbyrussell/oh-my-zsh#3016

Fixes #5623.