Start to use Polymer for UI, see #3

Move bower components to public folder
Add polymer header bar to mainLayout.html
Show also users, added Houston package in the project, so css can be changed to match our design
Added houston project directly in packages folder, so its design can be changed
Update README.md
Update README.md
Some UI improvements
Merge branch 'develop' into feature/polymer_integration

Conflicts:
	.meteor/packages
	client/templates/game.html
	lib/routes/dashboard.js
Merge commit '075bf181a8063fe7027bec14b96aef7c5afe6f76' into feature/polymer_integration

Conflicts:
	.meteor/packages
update meteor
use google-chart
update packages, ui improvements and file upload
Merge branch 'feature/polymer_integration' into develop