Updates podspec, removing the XCTest framework

Including the XCTest framework seems to be causing a linking error in release builds. Much like this:
http://stackoverflow.com/questions/22496574/ios-application-will-not-launch-from-adhoc-distribution-because-it-cant-find-xc
version bump
Merging PR from @colinmcardell and adding a version bump to the library. Fixes #1.