stuller

Results 4 issues of stuller

minor coverage improvement for checkbox, dropdown, textarea, textfield

TextField has _updateMaskSelection defined twice ![image](https://user-images.githubusercontent.com/1141357/50488293-6b02d380-09c7-11e9-98eb-dbd207644045.png)

The doc site has a js error caused by the validate prop getting passed down to the html form element: ![image](https://user-images.githubusercontent.com/1141357/48862999-8ad22680-ed8d-11e8-9098-c55c294b06dd.png) Fix should just be adding validate to the blacklist...

bug

Buttons in IE and FF are showing a dotted line around the text when they receive focus. ![image](https://user-images.githubusercontent.com/1141357/43915992-f1b52dc4-9bd1-11e8-8cf0-6c18077eb34f.png) Browsers add this line to make it easier for people who use...

enhancement
CSS