[OnLook] Change control scheme again

Alt behavior is same as none behavior, panning moves to shift.
[OnLook] Allow opening special codeless floaters from the toolbar

Moves toolbar buffer into "toolbar" field of "special-ui", if "special-ui" exists, it will always have "toolbar" inside it
Adds support for "floaters" field of "special-ui", ["floaters"][name] should be an xml buffer containing <floater name= with that same name to work properly.
Merge branch 'OnLook' of https://github.com/diva/OnLook into OnLook