Updated to-do
Updated to-do
Moved Karma-CommonJS bridge's modules out of __karma__ global

As recommended by @vojtajina in
https://github.com/karma-runner/karma/issues/552#issuecomment-21768019
Improved error reporting when dependency not found (Karma/CommonJS bridge)
Started simplifying HtmlElement
Simplified code to send single-touch events
Finished simplifying event handlers and generators in HtmlElement
Added HtmlElement.relativeOffset() method
HtmlElement tests clean up after themselves