Fixing issues with share view and hidden keyboard on iPad.
Removing redundant iPad story rotation behavior.

-[StoryPageControl layoutForInterfaceOrientation:] already invokes -refreshPages.

-[NewsBlurAppDelegate hideShareView:] already invokes -transitionFromShareView.
Stopping animation of share view/keyboard before orientation has changed.
Merge pull request #401 from nriley/share-keyboard

Share view/hidden keyboard fixes
Fixing colors on share/train buttons when active. Fixing height on profile cells.
Removing last traces of Google Reader from ios app. Also add better final page of ftux. Fixing folder chooser in add dialog on ios.
Fixing activities height for subscriptions on ios. Also turning river back on for third-party clients. That wasn't fair and it's hard to get users to upgrade. I'd rather give users the ability to use the product instead of crippling it, unless there is a proper workflow for upgrading, which only exists on the web today.
Fixing 2 ios crashes: double-tapping instapaper button and a weird keyboard condition.
iOS v3. Fixed move site view folder placement as well.