Added -negate
Set a signal name for -negate
Merge branch 'easier-signal-naming' into negation
Merge pull request #42 from github/easier-signal-naming

Replace manual name updating with -setNameWithFormat:
Merge pull request #44 from github/negation

-negate
Merge branch 'master' into do-animation-completed

Conflicts:
	ReactiveCocoaLayout/RACSignal+RCLGeometryAdditions.h
	ReactiveCocoaLayout/RACSignal+RCLGeometryAdditions.m