update js_of_ocaml to 2.5
update tyxml to version 3.3.0
add version number to the name of the js_of_ocaml package
Updgrade ocsigen-server to 2.5
Update eliom to 4.1.0
qtcreator: Update from 3.2.0 to 3.2.1
Make uutf a *propagated*BuildInput of ocamlPackages.tyxml
Build js_of_ocaml with tyxml support
Adapt the derivation for the update of eliom to 4.1
Update firefox-bin to 33.0
firefox-bin: uses sha1 provided by Mozilla
Use opam to actually install eliom
Use propagatedBuildInputs in eliom
Add python package gsutil plus all its dependencies.
gst-plugins-good: add minimized version
xfce: add config into scope
xfce4-mixer: add pulseaudio support
gsutil (and boto-230) require Python 2.
Move these packages to the Python 2 only section.
libpcap: Force detection on Darwin
Reduce dependency footprint of gst-python.

The gst-python package actually is perfectly happy with pygobject and
does not require pygtk.