Switch image loader from FLTK to SDL_image (CMakeList.txt still has to be modified)
Removed FLTK-based main window
Removed FLTK-based GUIs
Removed HTML credits
Removed server browser for FLTK-based main window
Remove commented code
Fixed to compile correctly
.jpg now can be loaded
Fixed some little bugs (thanks to Clang static analyzer)
Fallback font is now aligned correctly
Added SDL_image to cmake based build.
Fixed includes.
Initialize SDL_image library before using it.
Merge pull request #129 from theunknownxy/fixes

Some fixes
Make some strings translatable
Update README.md

Added `wget http://www.libsdl.org/release/SDL2-2.0.1.tar.gz`