New map generator added (and SQLite, messed up the commits at that time...) (import from temporary git repo)

src/environment.h

@@ -197,6 +197,12 @@ public:
 	*/
 	ActiveObjectMessage getActiveObjectMessage();
 
+	/*
+		Activate objects and dynamically modify for the dtime determined
+		from timestamp and additional_dtime
+	*/
+	void activateBlock(MapBlock *block, u32 additional_dtime=0);
+
 	/*
 		ActiveBlockModifiers (TODO)
 		-------------------------------------------