Recoded sayhooks, now uses SM's silent/public chat triggers.

Began making set functions for the commands that will use them later.
Removed all sayhook cvars.

src/zr/commands.inc

@@ -36,6 +36,11 @@ CommandsInit()
     ClassOnCommandsCreate();
     WeaponsOnCommandsCreate();
     InfectOnCommandsCreate();
+    MenuOnCommandsCreate();
+    ZAdminOnCommandsCreate();
+    ZSpawnOnCommandsCreate();
+    ZTeleOnCommandsCreate();
+    ZHPOnCommandsCreate();
     VolOnCommandsCreate();
     
     // Forward event to modules. (hook commands)