Adds support for specialized endpoints returned by the topics api call.
Adds support for post_avatar field returned by some endpoints.
Adds support for endpoints that return a string instead of an object for the post author.
Merge branch 'reader' of https://github.com/aerych/WordPress-iOS into reader
adds friend finder to native reader
changes title button for iPad topics from private variable to property
Updating styles.
Tweaking styles a bit.
Add padding to the top of the posts list.
Adds dropshadows to items in the post list.
updated post titles in Post Table and Post Detail views

Changed CSS for atributes of the Post titles - line-height and margins.
Merge branch 'reader' of https://github.com/aerych/WordPress-iOS into reader