Merge pull request #23 from joeyblake/3.0b

3.0b
sharepress-pro is empty...?
Restored sharepress-pro submodule
Tooltips + Twitter Client bug fixes + calendar form
Post date editing UI in place as well as several other UI features required to facilitate such
Wrapping up the date picker
Fix bug in calendar picker
Refactor Profile and Update classes and functions into their own include files for easier maintenance
In the middle of debugging updates
added social metadata metabox, with basic loading and saving
added metabox for social tags
progress on image override
simplify social metadata editing/saving
sp_wp_head progress