Moved reader-related constants to their own class
Increased # of recommended blogs from 10 to 20
Blog fragments are reloaded after resuming to ensure follow status is accurate
Improved method of detecting follow status changes
Removed followed blogs from subs activity - API doesn't return enough info to make it reliable/useful
Blog following changes are now reported to the blog fragment, and the reader activity now refreshes "Blogs I Follow" if any blog has been followed/unfollowed from the subs activity
Code cleanup