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
Use opam to actually install eliom
Use propagatedBuildInputs in eliom
KDevelop: Add some propagatedUserEnvPkgs dependencies.
Now KDevelop should start in a functional form without having to
manually install those.
zabbix-server: add extraConfig option

add types to options
zabbix-server: add new optional build options
update picard 1.2->1.3
ocaml-lwt: fixes build with OCaml 3.12 and 4.02
Add mirrors for sage
sxiv: update to 1.3-git and fix runtime behaviour

The fix involves using imlib2 built with giflib instead of a libungif.
Initially I split imlib2 into two but other distros seem to build imlib2
with giflib already and everything still builds with giflib version so I
migrated imlib2 to giflib all together.

Closes #4622
emacs24Packages.auctex: 11.87 -> 11.88
Merge pull request #4801 from robberer/pkgs/zabbix-server

zabbix-server: add extraConfig option