fix(specs): fix jQuery to jqLite binding on IE8

It appears that this whole time all IE8 unit tests ran only with jqLite. Due to a weird bug in IE[1], we never overwrote jqLite implementation with jQuery, so the tests ran with our jqLite instead.

This affected only IE8 (and likely older) and only in unit testing mode. angular.js - the built artifact binds to jQuery just find.

[1] https://plus.google.com/104744871076396904202/posts/Kqjuj6RSbbT