Whoa, amb1941: All of AMX Mod X is now officially moved over to Visual Studio 2005 (MSVC 8)

Also did the following:
* Removed -fPIC from all Linux makefiles
* AMXX build tool now also moved over to VS 2005
* AMXX build tool binary renamed from "AMXXRelease" to "builder"
* MSVC project files now can use environment variables to point to the paths of the Metamod headers and HL SDK: $(METAMOD) and $(HLSDK) respectively

compiler/amxxpc/amxxpc.cpp

@@ -12,6 +12,13 @@
 #include "amxxpc.h"
 #include "Binary.h"
 
+#ifdef _MSC_VER
+	// MSVC8 - replace POSIX functions with ISO C++ conformant ones as they are deprecated
+	#if _MSC_VER >= 1400
+		#define unlink _unlink	
+	#endif
+#endif
+
 static PRINTF pc_printf = NULL;
 
 void ReadFileIntoPl(abl *pl, FILE *fp);