added a failing test
just use a plain object as the subscription identifier
++xcconfigs
Use the real Copy Headers build phase for the iOS library
Remove explicit search paths from the RACiOSDemo
Remove values that duplicate xcconfigs
Use angle brackets for all imports in exported headers
Remove incorrect comma
2013, yo
use NSNumbers as subscriber IDs
Merge pull request #263 from github/more-header-fixes

Use existing Copy Headers build phase for iOS
Declare -[RACTuple rac_sequence] as a property.
Add -[NSEnumerator rac_sequence].
Fixed some formatting.
use -enumerateObjectsUsingBlock: so it tracks the index for us
Merge pull request #266 from EnthusiasticCode/nsenumerator-sequence

Add -[NSEnumerator rac_sequence].
Make NSEumerator+RACSequenceAdditions.h public for iOS too

CC @Coneko
Merge pull request #259 from github/fix-combine-latest-cycle

Fix +combineLatest: cycle
Remove -map: override from RACSignal
Remove -flatten override from RACSignal

This effectively changes the implementation to use -bind: instead of
-flatten:, which is not only more general, but probably faster (since
it doesn't have any kind of queuing algorithm).