Tag 1.7.1

Use OMG 3.1.2

Tag 3.1.1

This version includes:
• Temporary aliases to disambiguate `error` the property and function
when Swift cannot be forced to do so.
• Fix for edge cases when dismissing a promised view controller
• Various minor fixes

Update podspec to support tvOS/watchOS

Tag 3.1.0

Includes:
• Swift 2.2 support
• UIImagePickerController category improvements
• Array overloads for `join` and `race`
• Fix for an import issue when using Obj-C++

Fix link in podspec

Tag 3.0.2

Merge pull request mxcl#348 from adrianbg/patch-1

Fix infinite recursion in ensure

Remove deprecated subspecs

Tag 2.2.2