added sample footer with routing to _experimental/masthead
added active state to masthead link
added more tab samples to _experimental/masthead
Added in page editing
updated sherpa folder
updated main sherpa folder
cleand up hotkeys and added persistance to grid overlay. Added data handling to editing textkey with data
Finished edit api and functions
Updated all references to sherpa version 0.8
Merge branch 'sherpa-v0.8-bo-wip' into sherpa-v0.8-wip

fixed conflicts:
	_experimental/masthead/assets/config/masthead.json
	_experimental/masthead/assets/includes/masthead.html
	_experimental/masthead/assets/js/masthead.js
	_sherpa/lib/sherpa-directives.js
	_sherpa/lib/sherpa-page-controller.js