ENYO-3023: Launch PhoneGap Build web help from PhoneGap Build properties tab in the Project Properties Popup
ENYO-3023: forgot related less file
ENYO-3023: raise to the front the PhoneGap Build help tab browser if it already exists
ENYO-3023: replace image with 32x32 pixels size, remove CSS for 36x36 px old image, and avoid to reload the page if the tab already exists
Merge pull request #538 from enyojs/ENYO-3023

ENYO-3023: Launch PhoneGap Build web help from PhoneGap Build properties tab