Core/Log: Fix linker errors that occur on msvc 12 lower then update 4

* http://stackoverflow.com/questions/4891067/weird-undefined-symbols-of-static-constants-inside-a-struct-class
* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_8.0.0/com.ibm.xlcpp8a.doc/language/ref/cplr038.htm%23cplr038
* closes #14463
* ref #14317

(cherry picked from commit 9b0b1185e4f9eb48cd16237f7622204687b9c01a)

Conflicts:
	src/server/game/Server/WorldSocketMgr.cpp

src/server/game/Reputation/ReputationMgr.cpp

@@ -28,6 +28,9 @@
 
 const int32 ReputationMgr::PointsInRank[MAX_REPUTATION_RANK] = {36000, 3000, 3000, 3000, 6000, 12000, 21000, 1000};
 
+const int32 ReputationMgr::Reputation_Cap = 42999;
+const int32 ReputationMgr::Reputation_Bottom = -42000;
+
 ReputationRank ReputationMgr::ReputationToRank(int32 standing)
 {
     int32 limit = Reputation_Cap + 1;