Reverting the GCC_WARN_ABOUT_MISSING_NEWLINE flag.
Reverting the GCC_WARN_ABOUT_MISSING_NEWLINE flag.

It fails to build when an imported header from a dependent framework has a missing newline.

RuiAAPeres/ReactiveCocoa,ohwutup/ReactiveCocoa,sandyway/ReactiveCocoa,andersio/ReactiveCocoa,calebd/ReactiveCocoa,victorlin/ReactiveCocoa,smilypeda/ReactiveCocoa,smilypeda/ReactiveCocoa,rpowelll/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,walkingsmarts/ReactiveCocoa,sandyway/ReactiveCocoa,victorlin/ReactiveCocoa,tzongw/ReactiveCocoa,ikesyo/ReactiveCocoa,ohwutup/ReactiveCocoa,tzongw/ReactiveCocoa,tzongw/ReactiveCocoa,walkingsmarts/ReactiveCocoa,smilypeda/ReactiveCocoa,andersio/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,RuiAAPeres/ReactiveCocoa,ikesyo/ReactiveCocoa,sandyway/ReactiveCocoa,victorlin/ReactiveCocoa,ohwutup/ReactiveCocoa,andersio/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,calebd/ReactiveCocoa,calebd/ReactiveCocoa,rpowelll/ReactiveCocoa,rpowelll/ReactiveCocoa,walkingsmarts/ReactiveCocoa,ReactiveCocoa/ReactiveSwift