move print_backtrace
small fixes
cleanup
use backtrace_symbols_fd
small fix
xcode
simple main thread hang detector
add Debug_* stuff from OpenLieroX (coded by me)
add ThreadHangDetector
mutex
header
implement ThreadHangDetector
qmake: app: c++11
xcode
move code
final
nicer
use new ThreadHangDetector
small fix
more safe ExecInThread