[WIP][RFC] add FOSJsRoutingBundle

refs #1552

ping @cmfcmf @Guite

I am pretty sure this is correct, but I have yet to figure out to make it work in my own javascript file. I know that it is trying to work, but failing.

for example

`var route = Routing.generate('zikulaextensionlibrarymodule_ajax_setversionstatus', null, true);`

returns: `Error: The route "zikulaextensionlibrarymodule_ajax_setversionstatus" does not exist.`

so, I need some ideas.
If you want stable, use a version number/range.