Start integrating 3d.
Revert "Change path of rack/chrome_frame to load in application.rb."

This reverts commit db0078526e4610379f04d7e22e6e04bc735f862b.

Conflicts:
	config/application.rb
Fix loading of sqlite3 extension and chrome frame libs.
Integrate 3d view in common layout.
Integrate 3D to menu.