Adminotech windows dependency changes

* Updates windows Qt to 4.8.4. We tried to look for the performance problems that were observer with 4.8.0 but could not reproduce them.
* Removes unwanted projects/options from the Qt build.
* Modifies bullet to be build in both release and relwithdebinfo configurations.

After this code is in you need to remove from `/deps`: qt, QtScriptGenerator, QtPropertyBrowser, QXmpp and bullet.

<b>NOTE:</b> I would recommend merging our bugfix branch before this is pulled in.