Document jQuery version requirement

[cvrebert]

Perhaps just point folks to our bower.json.

[Merg1255]

This should also be in the documentation pages. Having two sections, for 1.10.x and 2.x.
People should know which version works with which features.

[cvrebert]

I don't think Bootstrap itself works any differently depending on which major version of jQuery is used, and it certainly isn't our job to explain how jQuery itself changed between v1 and v2.

[Merg1255]

Sure. I'm just saying that devs should know if features are working on all browsers with both versions of jQuery.