Add failing test for KVO bug
Find the instance method rather than the immediate one on the class

This fixes the KVO bug where rac_signalForSelector methods wouldn't be invoked after the object is KVO'd.
Add test that signalForSelector's then KVOs then signalForSelector's again
Store the pre-swizzled class as an associated object on the object
Add test to check that the right signal is fired if there's two instances of the same class that add a signal for the same selector
Better name
Rearrange and add comment
Merge pull request #1281 from mattjgalloway/kvo_bug

Fixes KVO bug described in issue #1280
Update to jspahrsummers/objc-build-scripts@a46f07e3fdf1cb0ec5f7f0fa5b2e8b870a8321d2

Also start using the workspace instead of the project file.
Prefer finding schemes in our project file

Since our workspace contains dependencies, we need to skip those on CI.
Merge pull request #1312 from ReactiveCocoa/update-build-scripts

Update build scripts
Merge branch 'master' into 3.0-development