RACSequence addition added to NSIndexSet
Reive notes taken into account, small odds fixed
NSIndexSet sequence additions TestSpec fixed according to Notes
Make NSString properties copy
Get rid of the beforeAll block
Complete when NSUserDefaults deallocates
Test that the terminal sends an initial value
Clarify that the terminal sends a value upon subscription
Add a third slash for Xcode
Refactoring: buffer copying optimized. Formatting fixed.
Documentation added. Public header added to common headers list.
Simplify the documentation
Small modifications according to review notes
Use objc_precise_lifetime
Merge pull request #1028 from ReactiveCocoa/user-defaults-improvements

Improve NSUserDefaults support
Make NSIndexSet+RACSequenceAdditions public
Remove umbrella import from RACIndexSetSequence
Simplify RACIndexSetSequence with derived variables
Various style fixes
Merge pull request #1031 from ReactiveCocoa/pr/1019

NSIndexSet.rac_sequence redux