Refactor modules, closes #223

* All modules are sandboxed now
* All images,sounds,fonts,translations and styles were moved to "data" folder
* Reorganize image files folders
* Remove unmaintained modules: client_particles, client_shaders
* Implement new automatic way to load styles and fonts
* Add hide/show offline option in VipList
* Add invite/exclude to/from private channel in players menus
* Many other minor changes

modules/client_entergame/characterlist.lua

@@ -92,7 +92,7 @@ end
 local function onLoginWait(message, time)
   CharacterList.destroyLoadBox()
 
-  waitingWindow = g_ui.displayUI('waitinglist.otui')
+  waitingWindow = g_ui.displayUI('waitinglist')
 
   local label = waitingWindow:getChildById('infoLabel')
   label:setText(message)
@@ -170,7 +170,7 @@ function CharacterList.terminate()
 end
 
 function CharacterList.create(characters, account, otui)
-  if not otui then otui = 'characterlist.otui' end
+  if not otui then otui = 'characterlist' end
 
   if charactersWindow then
     charactersWindow:destroy()

modules/client_entergame/entergame.lua

@@ -60,9 +60,9 @@ end
 
 -- public functions
 function EnterGame.init()
-  enterGame = g_ui.displayUI('entergame.otui')
-  enterGameButton = TopMenu.addLeftButton('enterGameButton', tr('Login') .. ' (Ctrl + G)', 'login.png', EnterGame.openWindow)
-  motdButton = TopMenu.addLeftButton('motdButton', tr('Message of the day'), 'motd.png', EnterGame.displayMotd)
+  enterGame = g_ui.displayUI('entergame')
+  enterGameButton = modules.client_topmenu.addLeftButton('enterGameButton', tr('Login') .. ' (Ctrl + G)', '/images/topbuttons/login', EnterGame.openWindow)
+  motdButton = modules.client_topmenu.addLeftButton('motdButton', tr('Message of the day'), '/images/topbuttons/motd', EnterGame.displayMotd)
   motdButton:hide()
   g_keyboard.bindKeyDown('Ctrl+G', EnterGame.openWindow)