Release/0.11.4.pre2

### Fixes Xcode 6.1 + iOS 7.1 Simulator testing.

See https://github.com/calabash/calabash-ios-server/commit/71085b90841d521cde732de8e7dc22b9537968de for the relevant changes.

Should be a complete fix for: "Intermittent timeouts performing gestures in Xcode 6.1 targeting iOS 8.1 simulators" https://github.com/calabash/calabash-ios/issues/585 #585

* Adds XCTest target
* Clean-up of project schemes
* Modernized the library build scripts