Some minor fixes.

* Mount options will no longer display in unsupported protocols.
* Fixed a bug with opening outfit window while its already open.
* Fixed base speed stat when using unsupported protocol.

modules/game_interface/gameinterface.lua

@@ -257,11 +257,13 @@ function createThingMenu(menuPosition, lookThing, useThing, creatureThing)
     if creatureThing:isLocalPlayer() then
       menu:addOption(tr('Set Outfit'), function() g_game.requestOutfit() end)
 
+      if g_game.getFeature(GamePlayerMounts) then
         if not localPlayer:isMounted() then
           menu:addOption(tr('Mount'), function() localPlayer:mount() end)
         else
           menu:addOption(tr('Dismount'), function() localPlayer:dismount() end)
         end
+      end
 
       if creatureThing:isPartyMember() then
         if creatureThing:isPartyLeader() then

modules/game_outfit/outfit.lua

@@ -47,6 +47,10 @@ function updateMount()
 end
 
 function create(creatureOutfit, outfitList, creatureMount, mountList)
+  if outfitWindow and not outfitWindow:isHidden() then
+    return
+  end
+  
   outfitCreature = creatureOutfit
   mountCreature = creatureMount
   outfits = outfitList

modules/game_skills/skills.lua

@@ -70,7 +70,7 @@ function resetSkillColor(id)
 end
 
 function setSkillBase(id, value, baseValue)
-  if baseValue < 0 or value < 0 then
+  if baseValue <= 0 or value < 0 then
     return
   end
   local skill = skillsWindow:recursiveGetChildById(id)