make lang is now always done automatically regardless of build type
always use current dir for data dir
Fixed function names in anonymous namespace
Fixed function names in UI and Debug namespaces
ixed function names in Widelands namespace
Fixed function names in anonymous namespace
Deleted Mix_Chunk * RWopsify_MixLoadWAV(FileRead &) in sound_handler.h
Merged trunk
Added tooltips to terrain types in editor
Added terrain name to tooltips
Using vector for tooltips
String length tweaks for editor. Removed file extensions from list, added tooltips in case of very long names.
Spinboxes now align properly when big = false
Created a getter for a vector of spinbox buttons so we can bind sigclicked to outside function.
Tweaks for spinbox  button size and unit label
The generic background for fs menu is now ui_fsmenu.jpg for all fullscreen menus that don't have effects on the background
Options menu overhaul:
- using constanst and relative positioning for easier layout tweaking
- spinbox units now update with ngettext
- removed superfluous calls to set_textstyle(ts_small()) etc.
Fixed space issues in login box
Edotir: wider windows for new random map and map options
Fixed column width in encyclopediawindow. Consumed Ware Types column title now dynamically updates with ngettext.