Add submodule custom/plugins/docker @cfc5767

* custom/plugins/docker 0000000...cfc5767 (9):
  > Merge pull request #4 from vincentbernat/fix/all-stopped-containers
Added brute force package completin on install subcommand

Conflicts:
	plugins/pip/_pip
Added caching of packages
Added message when caching packages
Improve pip plugin options support

* -r, --record now looks for a local file instead of trying to cache
  the entire package index
* add --editable because it's useful
* add --single-version-externally-managed because it is too long
* add --record and --root because they're required by
  --single-version-externally-managed
pip: successfully cache all the packages

Switch to using curl and regular expressions to generate a local cache
file so that we don't need to hit pypi.python.org every time.
This (obviously) results in a massive speed improvement, especially if
you spawn new shells frequently.

This also makes the autocompletion work for me, it didn't before. (pip
would always time out.)

And, also, for fun: This allows you to explicitly set which pip indexes
to use. Technically the old version of the plugin should have had this
behavior automatically -- without having to do more than configure pip
-- but the install completion never worked for me so this is a net gain
in functionality.
Make the pip cache work with djangopypi2

Also add a test function that allows messing with the cache-creating
regex with some assurance that you're not trampling other people's
index-parsing.
fix pip plugin
Merge branch 'cherry-pick-pip'

Upstream commits for pip plugin, using cherry-pick on:

    git rev-list --reverse d426fcb173b0c4..upstream/master plugins/pip