Use new coding style in game modules

Lots of refactoring and changes
Remove docs folder

modules/game_playermount/playermount.lua

@@ -1,23 +1,19 @@
-PlayerMount = {}
-
-function PlayerMount.init()
+function init()
   if g_game.getFeature(GamePlayerMount) then
-    g_keyboard.bindKeyDown('Ctrl+R', PlayerMount.toggleMount, gameRootPanel)
+    g_keyboard.bindKeyDown('Ctrl+R', toggleMount, gameRootPanel)
   end
 end
 
-function PlayerMount.terminate()
+function terminate()
   if g_game.getFeature(GamePlayerMount) then
     g_keyboard.unbindKeyDown('Ctrl+R', gameRootPanel)
   end
-
-  PlayerMount = nil
 end
 
-function PlayerMount.toggleMount()
+function toggleMount()
   g_game.mount(not g_game.isMounted())
 end
 
-function PlayerMount.dismount()
+function dismount()
   g_game.mount(false)
 end

modules/game_playermount/playermount.otmod

@@ -3,10 +3,7 @@ Module
   description: Manage player mounts
   author: BeniS
   website: www.otclient.info
-
-  @onLoad: |
-    dofile 'playermount'
-    PlayerMount.init()
-
-  @onUnload: |
-    PlayerMount.terminate()
+  sandboxed: true
+  scripts: [playermount.lua]
+  @onLoad: init()
+  @onUnload: terminate()