Merge pull request #1 from callemall/master

Sync with callemall
Implementing #104
Added tooltips to icon buttons
Change based on suggestion from @hai-cea
Add linkButton functionality to buttons. Fixes #130
Doc Stite - changed to use linkButtons
Another fix as suggested by @hai-cea
Merge pull request #116 from DeviaVir/remove-roboto

Remove roboto - Fixes #104
Tooltip style fix
Doc Site - Updated docs to  include Roboto Font
Added font import to example
v0.4.0 Release
Change :valid hack to class not-empty for inputs (also add email type) #55