The last selected page in ReaderSubsActivity is now remembered and restored
Blog adapter and tag adapter now use stable IDs when possible
Added tag icon to tag list item
Fixed bug that caused unfollowing to fail if done immediately after following
Moved logic for adding/removing a tag to the adapter, changed animation
* Removed message bar when adding/removing tags from the list. Now only shown after typing a tag.
* Changed to using different animations in the list when adding/removing a tag
Simplified performFollowAction by splitting into smaller routines
Code cleanup