Stubs out new VC for reblogging and other changes.

Adds methods for fetching only WPCom blogs to BlogService
Adds BlogSelectorVC subclass that works with just WPCom blogs.
Merge branch 'develop' of github.com:wordpress-mobile/WordPress-iOS into issues/36-reblogging-improvements

Conflicts:
	WordPress/Classes/ReaderPostDetailViewController.m
	WordPress/Classes/ReaderPostsViewController.m
	WordPress/WordPress.xcodeproj/project.pbxproj
Finishes layout. Wires up reblogging action.
Fix issue formatting path for REST call.
Fixes issues with reblogging.

Sets delegates.
Assign bools instead of numbers when optimistically saving.
Update respective post views after reblogging.
Simplify reader layout options via an enum.
Restore avatars after calling configure.
Remove obsolete files.
Fix layout issues after orientation change.
Merge branch 'develop' of github.com:wordpress-mobile/WordPress-iOS into issues/36-reblogging-improvements

Conflicts:
	WordPress/Classes/ViewRelated/Reader/ReaderReblogFormView.h
	WordPress/Classes/ViewRelated/Reader/ReaderReblogFormView.m
	WordPress/Classes/ViewRelated/Reader/ReaderTextFormView.h
	WordPress/Classes/ViewRelated/Reader/ReaderTextFormView.m
Merge triage for the new file structure.

Moves the blog picker view controllers under Blogs as opposed to Reader and Posts.
Center author vertically.
Merge branch 'develop' of github.com:wordpress-mobile/WordPress-iOS into issues/36-reblogging-improvements

Conflicts:
	WordPress/Classes/ViewRelated/Reader/ReaderPostDetailViewController.m
Merge branch 'develop' of github.com:wordpress-mobile/WordPress-iOS into issues/36-reblogging-improvements

Conflicts:
	WordPress/Classes/ViewRelated/Reader/ReaderPostView.m
	WordPress/Classes/ViewRelated/Reader/ReaderUsersBlogsViewController.m
Merge branch 'develop' of github.com:wordpress-mobile/WordPress-iOS into issues/36-reblogging-improvements
Listen for keyboard events when the view appears.

Listen when the view appears instead of when it loads to avoid loosing our listeners
when returning from the blog selector.
Fix an issue where reblogs did not go to their intended destination.

Removes soem dead code.
Fixes formatting issue with a fetch request.

Was causing a crash in the 64bit simulator.
Correctly layout the follow button.

Correctly gets the value for height without relying on the button's internal label having text.
Merge pull request #1759 from wordpress-mobile/issues/1758-follow-button-layout

Correctly layout the follow button.