fix($sniffer): detect transition/animation on older Android browsers

The stock Android browser doesn't support the current for-in body/style
detection for animations and transitions but we can manually fix this.
This is useful for PhoneGap web-views or traditional web-apps using the
stock browser.
fix(i18n): Do not transform arrays into objects

Do not trasnform arrays into objects when generating the locale objects
Add unit test for this check
fix(grunt): Give java 2g of memory

Give the java build process 2g of memory
fix($compile): empty normalized href should pass sanitation check

Sometimes IE returns an empty string for its normalized href on a tags.
This should pass the sanitation check in $compile.

Closes #2219, #2593