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/cc @dannygreg
Added more info links.
Merge pull request #1095 from AshFurrow/ashfurrow-links

Added more info links.
-rac_textSignal should accommodate IB 'clear when editing begins'
Updated comments & channel events for the previous change
Added test case for -rac_textSignal, adjusted formatting
Remove old demo app links

Resolves #1100.
Merge pull request #1103 from ReactiveCocoa/jspahrsummers-patch-1

Remove old demo app links
Cleaned up rac_textSignal clearsOnBeginEditing test
Merge pull request #1098 from drhr/master

rac_textSignal should accommodate 'clear when editing begins'
Change RAC_DEBUG_SIGNAL_NAMES into an envvar
Vary -rac_description behavior based on the envvar too
Use sel_getName in signal naming to avoid allocations

Selector names are cheaper to retrieve as C strings than to wrap in
NSStrings.
Update instrumentation README
Merge pull request #1114 from ReactiveCocoa/signal-naming-envvar

Change RAC_DEBUG_SIGNAL_NAMES into an environment variable
Added test for subscribers retaining disposed disposables.
Abuse the fact -didSubscribeWithDisposable: is only ever passed compound disposables to change the signature.
Fixed RACSubject and RACSubscriber retaining disposed disposables.
Fix the italics and fixed width text being nested wrong when rendered by Github.
Merge pull request #1129 from ReactiveCocoa/fix-markdown-misrendering

Fix the italics and fixed width text being nested wrong.