Improved class system with support for multipliers. Minior fixes, see details.

Made class attribute multipliers.
Made admin menus for adjusting class attribute multipliers.
Made console command for setting class attribute multipliers.
Fixed health regen amount class attribute not validated.
Fixed health regen not stopping after surviving a round as a zombie.
Improved ZRIsClientAdmin to support admin flags (optional).
Changed permission flag on admin commands to match action type. Like only admins with config access should be able to do ZR configuration.
Changed log formatting to match style in SourceMod. Removed "-" and ":". The result will be "... [plugin.smx] [mod] [event] message".

src/zr/playerclasses/classevents.inc

@@ -24,6 +24,8 @@
 ClassClientInit(client)
 {
     // Check if there are valid classes and the client is valid.
+    // To prevent bots or SourceTV causing errors. If classes are invalid this
+    // event was executed before classes were loaded. 
     if (ClassValidated && ZRIsClientValid(client))
     {
         // Set default class indexes on the player.
@@ -69,6 +71,9 @@ ClassOnClientSpawn(client)
         return;
     }
     
+    // Reset attributes by triggering death event.
+    ClassOnClientDeath(client);
+    
     new bool:randomclass = GetConVarBool(g_hCvarsList[CVAR_CLASSES_RANDOM]);
 
     decl String:steamid[16];