Add methods to NSDictionary for retrieving values that are guaranteed to be of the expected class
Merge pull request #69 from pivotal-brian-croom/dictionary-typesafe-extraction

Add methods to NSDictionary for retrieving values that are guaranteed to be of the expected class
Change to autoreleasing method family and release test object (MRC specs)
Merge pull request #70 from joemasilotti/activityVC-stubs

Adds UIActivityViewController stubs
Fixes up memory management of UIActivityController+Spec

- Adds static analysis hint to declared non-init-family initializer
- Fixes init code path to avoid a BAD_ACCESS crash
- Associated object key uses address of char instead of literal value
- Ensures test objects are (auto)released
CHANGES.markdown includes recent pull requests

Also adds UIActivityViewController+Spec.h to iOS static framework target
Nibs can be used to load other nib-based view classes

- Placeholder view needs to be set to the view's runtime class
- restorationIdentifier must start with "placeholder"
- Nib must have same name as view class
- Could possibly be made more abstract to work with other base classes
- Bumps deployment target to iOS 6 as this supports preserving autolayout constraints
Adds support for loading child or sibling view controllers from nibs

- Controller nib is assumed to have same name as controller class
- Controller placeholder view should have a restoration identifier
  beginning with 'placeholder'
- Child controller nib should have the controller's view as the first
  view object (as is typically the case)
Don't apply placeholder's constraints to replacing view for constratints between the placeholder and it's subviews
Update readme to include link to wiki for nib loading helpers
Update CHANGES.markdown to include note about nib loading helpers
Set UIKit deployment target to iOS 6.0 at the root of the project
Merge pull request #65 from pivotal/NibLoadingHelper

Nibs can be used to load other nib-based view classes
PSHKFakeHTTPURLResponse is a NSHTTPURLResponse
Update podspec to use arc for UIView+PCKNibHelpers.m
Merge pull request #72 from alexbasson/update-podspec-uikit-core-arc

Update podspec to use arc for UIView+PCKNibHelpers.m
Bump cedar to v0.9.6
Remove requirement for view to be in a window for -[UIActionSheet showFromRect:inView:animated:]
Prevent against requirement that a bar button item be in a window for UIPopoverController stubs
Add support for toggling UISwitch in specs