1st pass at post detail redesign
2nd pass at post detail redesign
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into feature/reader-redesign-post-detail
Scrolling down post detail auto-hides action bar and buttons, scrolling back up re-displays them
Action buttons (reblog/comment/like) in post detail now animate in/out at the same speed as the ActionBar
cleaning and fixing NPE - ref #406
remove unused function
Tweaks to follow buttons
Added handbook color names as comments to colors.xml
* Tags are now parsed and stored when posts are updated
* Added single tag to items in post list
openUrl now accepts parameters which determines whether to open passed url in the app or in the external browser
Move likes in post detail to between the post and its comments
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into feature/reader-redesign-post-detail
* Removed two-column view of post list, replaced with wider margins for landscape/tablet (more readable than two columns)
* Removed StaggeredGridView
Adjusted/added reader list margins for tablets & landscape tablets
First tag is now pre-cached before display to boost post adapter performance
Added padding to post detail for extra whitespace around content & comments
Post detail now shows featured image above content if image doesn't already appear in the content
* Featured image in post detail now shows photo viewer when tapped
* Added "following" noticon
* Author name is only shown in post detail if different than blog name
* Follow button color now defined in color resource
* Removed unused resources
* Post adapter skips updating follow button when unchanged