Guideline:
- do NOT translate strings in error() messages, or in dprint()!
- delete obviously useless developer prints while at it
- change obvious developer prints from print to dprint (even in comments),
  unless in developer-only functions (e.g. *dumptree*)
- mark translatable strings with _()
- if a translatable string is a strcat monster, change it to sprintf
- if code loads files with text, use language_filename()
- test by:
  find . -type f -not -name \*.po | xgettext -LC -k_ -f- gamecommand.qc
- interesting vi macros:
  :map # /"<return>
  :map ' i_(<esc>2f"a)<esc>/"<return>

List of files to do:

./xonotic/slider_decibels.c
./xonotic/slider_picmip.c
./xonotic/slider_resolution.c
./xonotic/tabcontroller.c
./xonotic/textslider.c
./xonotic/util.qc
./xonotic/weaponslist.c
./xonotic/dialog_multiplayer.c
./xonotic/dialog_multiplayer_create_advanced.c
./xonotic/dialog_multiplayer_create.c
./xonotic/dialog_multiplayer_create_mapinfo.c
./xonotic/dialog_multiplayer_create_mutators.c
./xonotic/dialog_multiplayer_demo.c
./xonotic/dialog_multiplayer_join.c
./xonotic/dialog_multiplayer_join_serverinfo.c
./xonotic/dialog_multiplayer_playersetup.c
./xonotic/dialog_multiplayer_playersetup_waypoint.c
./xonotic/dialog_multiplayer_playersetup_weapons.c
./xonotic/dialog_news.c
./xonotic/dialog_quit.c
./xonotic/dialog_settings_audio.c
./xonotic/dialog_settings.c
./xonotic/dialog_settings_effects.c
./xonotic/dialog_settings_input.c
./xonotic/dialog_settings_input_userbind.c
./xonotic/dialog_settings_misc.c
./xonotic/dialog_settings_misc_cvars.c
./xonotic/dialog_settings_network.c
./xonotic/dialog_settings_video.c
./xonotic/dialog_singleplayer.c
./xonotic/dialog_singleplayer_winner.c
./xonotic/dialog_teamselect.c



Unresolved TODO:

- translated campaigns