Buildsystem: Overhaul of the CMake buildsystem:

- utilize CMake for completely generating revision.h (kills off genrev and revision.h targets):
  - pull and set correct revision-ID/hash from Mercurial (hg) when using regular repository sourcetree
  - pull and set correct revision-ID/hash from archived releases (when pulled from googlecode)
  - set and use _BUILD_DIRECTIVE definition (earlier part of revision.h) as compiletime definition
- delete genrev and related buildsystems
  (now deprecated)
- Move some files around to adhere to buildsystem structure
Thanks to Shauren for figuring out the definition-behaviour for MSVC while he was in the shower

--HG--
branch : trunk
rename : cmake_uninstall.cmake.in => cmake/platform/unix/cmake_uninstall.in.cmake

src/server/game/CMakeLists.txt

@@ -198,8 +198,6 @@ include_directories(
 
 add_library(game STATIC ${game_STAT_SRCS})
 
-add_dependencies(game revision.h)
-
 # Generate precompiled header
 if( USE_COREPCH )
   if(CMAKE_COMPILER_IS_GNUCXX)