reintroduce the notification message in case you access dlc page without internet connection
remove low grav from fort mode since players might not appreciate it if they just want to play a quick regular forts match against a challenger.
fix typo
remove bioshock3-reference on hedgehogs drowning (unlike its predecessors, it turned out to not take place underwater)
add useful variables for non-Makefile generators to set where we want our stuff built
use SDL_Threads everywhere
The trick was to mark the threaded functions as cdecl and load arguments correctly. This allows us to:
- drop a few ifdefs;
- use integrated waiting code;
- remove some whitespaces \o/;
- fix
bug #591.