* Migrate all add_definitions to target_compile_definitions
* Remove -D from preprocessor definitions added by target_compile_definitions (unneccessary, cmake strips it anyway)
* Fixed NO_BUFFERPOOL not being set on g3d if jemalloc is used
* Moved library/compiler specific compile flag settings spread all over various CMakeLists to their related library/compiler file
* Remove ancient manual link flag settings for worldserver
* to make use of cmakes inherited link dependencies which
imports all include directories/ definitions from the link library
(cherry picked from commit 1a572d2425)
Tested with:
- Windows 8 x64
- MySQL 5.5.30 win32
- OpenSSL 1.0.1c (32 bits)
- No PCH
- MinGW with GCC 4.7.0
TODO:
- Fix compile/link with PCH enabled
- Fix compile with WheatyExceptonionReport enabled (ignored for now)
- Fix compile of .rc files (ignored for now)
- Test with more platforms