Create avrg.html

Average widget. It recives Floats (one by one) and calculates its average. 
There is an issue with the CSS, feel free to review it.
Create max.html

Listens for Floats and saves the max of them
setting the instance value
Adding instructions to run the server into the README
Added a remix me template component.
Renamed remix-me component to component template.
Merge branch 'master' of https://github.com/mozilla/appmaker-components
Merge branch 'master' of github.com:mozilla/appmaker-components
Merge branch 'master' of github.com:AVGP/appmaker-components into AVGP-master

Conflicts:
	README.md
Fixed slider bug and changed broadcast channel name for rating widget.
Merge branch 'master' of https://github.com/mozilla/appmaker-components
Button cleanup.
Limiting max chat messages received to 100. Fix for #449
Merge branch 'master' of github.com:mozilla/appmaker-components
Button cleanup - now has configurable "active" state, at least for clicks, etc.
Merge branch 'master' of https://github.com/mozilla/appmaker-components
Properly fixing https://github.com/mozilla/appmaker/issues/449
Removing artifact from merge.
Minor component updates.
Merge branch 'master' of https://github.com/mozilla/appmaker-components