Fix reference to framework search path in iOS unit test build settings.
Fix reference to framework search path in iOS unit test build settings.

To silence this warning:

ld: warning: directory not found for option '-F/Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.0.sdk/Developer/Library/Frameworks'

kareman/FootlessParser,kareman/FootlessParser