add masonry horizontalOrder option

fix sortHistory bug

update jQuery Bridget

Fix AMD filepaths

Remove IE8&9 code; add stagger option

Update Outlayer 1.4.2 for percent fix

add jQuery event triggering; fix Safari layout bugs

add arrangeComplete event; percentPosition option

refactor hide/reveal; require getSize v1.2.2

Proper v2.1.0 release for npm/Browserify