README, CHANGES and Description updates
README updates
minor spelling corrections
rename methods for what they hook into, hopefully makes just a bit easier to read
CHANGES updates
Branch support instructions
spacing fixes
README updates
first create stdClass with all plugin values, hopefully this will lead to a better refactoring.

Big issue is that the actual updating doesn't seem to work. `upgrader_source_selection` filter doesn't seem to be firing. This commit has Firebug functions all over.
fixes for displaying change log
rewrite api url
add debug
remove debug statements
remove debugging, add method to create some default values, cleanup other code.
fix comment
refactor themes to use stdClass, put upgrader_source_selection into base class
remove upgrader_source_selection, simplify some url creation
refactor theme updater class
follow WordPress Plugin Boilerplate layout
refactored to put remote calls in same class