Merge branch 'master' into swift-3

use legacy version of swift

Merge pull request devicekit#41 from dennisweissmann/misc

bumps version to 0.3.4
use 2-space indentation
adds documentation

0.3.3 release

Merge pull request devicekit#23 from dennisweissmann/release/0.3.2

new release (0.3.2)

Merge pull request devicekit#12 from dennisweissmann/CarPlay-UserInte…

…rfaceIdiom

added support for CarPlay InterfaceIdiom

Release 0.3.0

bumped version number to 0.2.0

Release 0.1.1.

expanded readme to demonstrate the new functionality