Buildsystem: Change over to a little more flexible method of using the CMake buildsystem (partially WIP) - REQUIRES RERUNNING CMAKE!

For finding out the "standard" parameters examine the cmake/options.cmake file and adjacent files for your platform/compiler.
For platform settings -> cmake/platform/*/settings.cmake
For compiler settings -> cmake/compiler/*/settings.cmake
Some more testing and changes IS required, but I don't have OSX/XCode to kill off the main issues

--HG--
branch : trunk
rename : cmake/FindPlatform.cmake => cmake/macros/CheckPlatform.cmake
rename : cmake/FindACE.cmake => cmake/macros/FindACE.cmake
rename : cmake/FindMySQL.cmake => cmake/macros/FindMySQL.cmake
rename : cmake/FindOpenSSL.cmake => cmake/macros/FindOpenSSL.cmake
rename : cmake/FindPCHSupport.cmake => cmake/macros/FindPCHSupport.cmake
rename : cmake/FindReadline.cmake => cmake/macros/FindReadline.cmake
rename : cmake/cmake_uninstall.cmake.in => cmake_uninstall.cmake.in

cmake/macros/CheckBuildDir.cmake

@@ -0,0 +1,23 @@
+# Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
+#
+# This file is free software; as a special exception the author gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+#
+# Force out-of-source build
+#
+
+string(COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" BUILDING_IN_SOURCE)
+
+if( BUILDING_IN_SOURCE )
+  message(FATAL_ERROR "
+    This project requires an out of source build. Remove the file 'CMakeCache.txt'
+    found in this directory before continuing, create a separate build directory
+    and run 'cmake path_to_project [options]' from there.
+  ")
+endif()