Update to Eliom3 + services typing
Merge branch 'master' into eliom-3.1

Conflicts:
	src/services.ml
Upgrade Knacss
Add cumulus.css
Change forms.css to cumulus.css
Update from master
Header is now ok
Loginbox/Loggedbox reworked, still need some fixes but is OK
Merge master into ui
Put the userbox always on the bottom right
Merge
Merge older changes
Merge branch 'master' into ui
Fix compile error
Add new avatar box
Merge branch 'master' into eliom-3.1
Update against the latest eliom
Update against the latest ocamlbuild-eliom
Merge branch 'master' into eliom-3.1

Conflicts:
	src/services.ml
Update against the latest ocamlbuild-eliom again