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the mangled version installed into $(brew-prefix)/bin if using
homebrew installed awscli on OSX.

This was discussed here - https://github.com/Homebrew/homebrew/issues/30268

Current completion plugin isn't up to date and #2075 PR, which is also
the completion plugin on the official tmuxinator repository, doesn't
work. Thus this should do the trick for the moment.
Also suppressed an error when no completion is available

Ruby 2.1.1 -> Ruby 2.1.2.

Add `brew cleanup` command to `bubu` alias

is useful if you want to install a local gem from the filesystem

"/usr/bin/python2" does not exist on Mac OSX (see #2382), so fuck people who have
"python" symlinked to "python3"

This reverts commit e5ed07e2

fixes #2076

related to #1587
closes #2200
closes #2561

closes #1817

closes #1825

closes #2779

This makes adding, deleting and merging a lot easier.

Add basic support for Docker related commands.

This change fixes the autocompletion for marks which contain numbers or dots.

Fixes #2578

`\d` in sed regular expressions doesn't work (see http://stackoverflow.com/questions/14671293/why-does-d-doesnt-work-in-regular-expression-in-sed)