.gitconfig: Add `dm` alias

`git dm` deletes local branches that have been merged with master.

Closes #309.
init: Tweak Sublime Text settings
.osx: Add Activity Monitor settings
.osx: Add Finder ‘Get Info’ settings
.osx: Display Bluetooth icon in menu bar
README: Credit @kevinSuttle
.osx: Set Desktop as the default location for new Finder windows

Closes #285.
.aliases: Add `jsc` alias

Useful for testing code in JavaScriptCore.

Hat tip: https://twitter.com/RussB/status/420409644117262336 (via @rauschma)
.functions: Make `np` remove `node_modules`

This lets you catch cases where you forgot to add a dependency to `package.json`.

Closes #321.
.osx: Support multiple `systemuiserver` pref files

Closes #319.
Brewfile: Install `p7zip` (i.e. `7z` etc.)
.osx: Kill `cfprefsd` after changing preferences

As of OS X 10.9 this is necessary to make sure the changes persist.

Closes #330.
Brewfile: Install ImageMagick with WebP support
.vimrc: Explicitly use the Molokai theme
Brewfile: install `moreutils`, if only for `sponge`

Hat tip: @chastell / http://talks.chastell.net/kodio-2014/#/21
Brewfile: install `pv` (pipe viewer)

Hat tip: @chastell / http://talks.chastell.net/kodio-2014/#/39
.osx: Make Dock more transparent

Closes #346.
Brewfile: explicitly list non-default taps
.functions: Add `a` alias for `atom`

Closes #349.
.osx: Remove old keyboard illumination settings

These commands don’t have any effect anymore in OS X 10.9.

Closes #327.