++xcconfigs
Don't automatically build unit tests
Merge branch 'master' into xcode6
++xcconfigs
Update to jspahrsummers/objc-build-scripts@a54782c
Purge static library targets, update Mac target
Recreate iOS target as a framework, misc settings
:fire: Specta and Expecta :fire:
Move xcconfigs to a new External folder
Add github/Quick
Build and link Quick and Nimble into test targets
Restore correct Mantle.h umbrella
Import Mantle/Nimble/Quick in specs
Fix spec begin/end macros
Find and replace expectation syntax
Manual fixups for everything else
Add dummy Swift file so tests run properly
Override test models' -description methods

Prevents infinite looping in Nimble matchers, which apparently pull out
a description eagerly.
Add missing iOS sources and resources to tests
Add Copy Frameworks phase for iOS