Fix crash when deallocating a drawer view controller that was never loaded.
Accomplished by removing key value observation only if the view is loaded. View loading is where we establish observing.
This fix is important for unit tests where the application UI may partially load: instantiating classes and relationships but not view hierarchies.
Change unsubscribe kvo crash fix to be more robust.
Simplify kvo crash fix. Subscribe to pane view in `-initialize` instead of `-viewDidLoad`.
Replace hard-coded KVO string with string from selector.
Merge pull request #61 from fcanas/master

Fix crash deallocating a drawer view controller that was never loaded.
Rebuild docs
Update to version 1.2.1
Remove newlines
Adds a MSDynamicsDrawerShadowStyler

Adds Shadow Styling to the PaneView
Simplify implementation of `MSDynamicsDrawerShadowStyler`.
Fix bug with styler callback, update styler implementations as well
Update ordering of example stylers
Uncomment delegate in example
Merge pull request #62 from monospacecollective/shadow-styler

Add shadow styler
Fix bug in parallax styler
Fix rare styler bugs
Fix layout bug caused by rotating during pane view panning gesture
Rebuild docs
Update to version 1.3.0
updating to sync master