build fix: linking with boost-system
minor: suppressing of SIGSEGV and SIGUSR only in final release build
build: standalone option for final release build (default: disabled)
crash fix: invalid weapon pointer (unset unit weapon)
allow playback of videos
fix deprecation warnings
check for __linux__ define not LINUX
Merge pull request #8 from JanSimek/linux

Skipped commit: 8172fe4 Radegast 'Revert "Use SDL_sound instead of libvorbisfile"'
build hotfix: gcc hangs on GameWorldFold.cpp
memory leaks: vasprintf in Logger.

allocations are a little bit expensive for logger
minor: missing data files shouldn't be logged to file in final release build
CombatWindow dtor fix: window should be destroyed after radar (double free)
build: Windows compilation fixes

OPTIONAL changed to NOTREQUIRED (uh) because of conflict
build: globally disable warnings for secure functions on Windows

- also fixes space in forced include header
- use OpenAL Soft on Windows
Merge pull request #12 from JanSimek/linux: MSVC compilation support

build: globally disable warnings for secure functions on Windows
build: Windows compilation fixes
Hotfixing issue #9: revert "Use SDL_sound instead of libvorbisfile"

This reverts commit 17267f6a7c7a72e9b5f25aa7cdfef7a6f0c0029c.
Merge remote-tracking branch 'vayerx/linux' into linux

Conflicts:
	CMakeLists.txt
	util/hiddencommand.cpp
cmake, #12: data paths are always cached -- for those, who use gui to configure
clang fix: global include file
Merge remote-tracking branch 'vayerx/linux' into linux