BF|BMM: new fallback callback/undo API for any unregistered hash
Merge branch 'master' of https://github.com/skycom/web-toolkit into skycom-master

Conflicts:
	grunt/js/utils/hashmanager.js
PM|BF: hash manager - improve how functions are registered.
Resolves #77
PM: update grunt version for dependencies
Merge branch 'master' into detection

Conflicts:
	_site/changes.html
	_site/dist/fonts/skycons.css
	_site/dist/fonts/skycons.eot
	_site/dist/fonts/skycons.svg
	_site/dist/fonts/skycons.ttf
	_site/dist/scripts/toolkit.js
	_site/index.html
	dist/fonts/skycons.css
	dist/fonts/skycons.eot
	dist/fonts/skycons.svg
	dist/fonts/skycons.ttf
	dist/scripts/toolkit.js
KG|PM: added docs around new responsive classes