Revert "fix(jqLite): use get/setAttribute so that jqLite works on SVG nodes"
to make ng-show and ng-hide work again on IE7

This reverts commit c785267eb8780d8b7658ef93ebb5ebddd566294d.

Conflicts:
	src/jqLite.js
	src/ng/animate.js
	test/jqLiteSpec.js