Merge and minify the javascripts libs for the temporal stats gadget.
Merge and minify the javascript libs for the timeline gadget.
Complete rewrite of the gadget; it is now much faster; a lots of filters are used and the data is requested only when it has to be displayed (on previous version everything was requested on the first load of the gadget. The graph management is now object oriented.
Adapt header to load the merged libs file.