Enable shared runtimes for everyone... I dont't think my last change will

allow Synchronet to keep running otherwise since there's a limit of 128
runtimes total in the the pool.  With this change, the number of runtimes
remains constant.

src/sbbs3/js_rtpool.c

@@ -16,7 +16,7 @@
 	#define DLLCALL
 #endif
 
-//#define SHARED_RUNTIMES
+#define SHARED_RUNTIMES
 
 struct jsrt_queue {
 	JSRuntime       *rt;