Add gulpfile
Minor tweaks to Readme.
Fixed gulp integration.
refs #12: Added gulp-gh-page based deploy task.
Fixed erroneous cursor target for draggable panels.
Fixes #14 - Added support for undo/redo.
Fixes #7 - Modularized components using browserify.

Also, got rid of bower.
Fixes #16 - Added missing import for DefaultContent component.
Fixes #16 (again) - Added missing import for Button component.