Core/Dependencies: Upgrade to jemalloc-3.3.1 (Also fixes a few weird crashes), closes #7852

Note: This adds support for using jemalloc on FreeBSD, Mac OS X Lion and a few other platforms (not enabled by default)
Please read dep/jemalloc/ChangeLog for further information (Changed from 2.1.1 and up apply)

dep/PackageList.txt

@@ -14,7 +14,7 @@ G3D (a commercial-grade C++ 3D engine available as Open Source (BSD License)
 
 jemalloc (a general-purpose scalable concurrent malloc-implementation)
   http://www.canonware.com/jemalloc/
-  Version: 2.1.0
+  Version: 3.3.1
   
 libMPQ (a library for reading MPQ files)
   https://libmpq.org/