Fixing one missing _.each.
Fixing problem with loading styles.
Merge branch 'v2-restructured' of https://github.com/OpenF2/F2 into v2-restructured

Conflicts:
	build/f2.min.js
	build/f2.min.map
Flattening "events" onto "F2" for #159.
Changing "remove" to "unload".
Fixing "loadPlaceholders" check for node existence.
Updating tests for lib changes.