Added the manuals site CSS and started to add CSS to match mockups
1. Add IDs to version selector's label and value elements.
2. Add _trackingActiveC to <body> element as soon as the selector widget is opened.
3. Version value is not as clickable as dropdown hadnle.
More updates to the main switch and the drop down styles. Introduced some CSS transitions to make the handle slide out and in. Everything is working down to IE7 at the moment.

I also removed the JS that calculates the required position for the drop down because this does not need to be position fixed, instead it is now position absolute to the content area and will scroll with the page as desired.
Instead of only hightlighting span.versionTracking elements, now it selects every .versionTracking class elements.
Do not show 'My Version' text until the user actually selects the version.