add icons to replace buttons, ref #185
replace button text with icons, fix #185
show disabled connect arrow half transparent as hint
add titles to iconified buttons
fix user address field being moved when authing
merge master into widget-details
make sure typeface is the same in widget
widget: increase spacing between buttons and cube
Merge branch 'master' into widget-icons

Conflicts:
	src/lib/assets.js
Merge pull request #196 from RemoteStorage/widget-icons

Widget iconification and more polish