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/client.lua

@@ -1,4 +1,4 @@
-local musicFilename = "startup"
+local musicFilename = "/sounds/startup"
 local musicChannel = g_sounds.getChannel(1)
 
 function setMusic(filename)
@@ -75,7 +75,7 @@ function init()
   end
 
   g_window.setTitle(g_app.getName())
-  g_window.setIcon(resolvepath('clienticon'))
+  g_window.setIcon('/images/clienticon')
 
   -- poll resize events
   g_window.poll()

modules/client/client.otmod

@@ -10,7 +10,7 @@ Module
   @onUnload: terminate()
 
   load-later:
-    - client_skins
+    - client_styles
     - client_locales
     //- client_particles
     - client_topmenu