Change +viewController to return "instancetype".

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Merge pull request #96 from rastersize/view-controller-instancetype

Change +viewController to return "instancetype".
Document RBLPopover's memory management.
Merge pull request #97 from github/document-popover-memory-management

Document RBLPopover's memory management
Add RBLExpandingContainerView.
Missing a couple of prefix renames.
Add RBLSlidingContainerView.
Become the UIDelegate and strip unwanted menuitems.
Merge pull request #99 from github/strip-menuitems-in-htmlview

Strip unwanted menuitems in RBLHTMLView
CGFloat -> NSTimeInterval
Fix file comment headers.
no more dots.
Fix dem comments.
constant for the first animation duration.
less dots please.
Add note about AL being enabled.
++expecta and specta
Merge pull request #98 from github/add-animating-containerviews

Add animating container views.
Fix coding styles
Merge pull request #101 from rewish/fix_coding_styles

Fix coding styles