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/game_questlog/questlinewindow.otui

@@ -19,7 +19,7 @@ QuestLineWindow < MainWindow
     anchors.top: parent.top
     anchors.left: parent.left
     anchors.right: missionListScrollBar.left
-    height: 200
+    height: 100
     padding: 1
     focusable: false
     vertical-scrollbar: missionListScrollBar
@@ -28,7 +28,7 @@ QuestLineWindow < MainWindow
     id: missionListScrollBar
     anchors.top: parent.top
     anchors.right: parent.right
-    height: 200
+    height: 100
     step: 14
     pixels-scroll: true
 

modules/game_questlog/questlog.lua

@@ -2,10 +2,10 @@ questLogButton = nil
 questLineWindow = nil
 
 function init()
-  g_ui.importStyle('questlogwindow.otui')
-  g_ui.importStyle('questlinewindow.otui')
+  g_ui.importStyle('questlogwindow')
+  g_ui.importStyle('questlinewindow')
 
-  questLogButton = TopMenu.addLeftGameButton('questLogButton', tr('Quest Log'), 'questlog.png', function() g_game.requestQuestLog() end)
+  questLogButton = modules.client_topmenu.addLeftGameButton('questLogButton', tr('Quest Log'), '/images/topbuttons/questlog', function() g_game.requestQuestLog() end)
 
   connect(g_game, { onQuestLog = onGameQuestLog,
                     onQuestLine = onGameQuestLine,

modules/game_questlog/questlog.otmod

@@ -4,6 +4,6 @@ Module
   author: edubart
   website: www.otclient.info
   sandboxed: true
-  scripts: [ questlog.lua ]
+  scripts: [ questlog ]
   @onLoad: init()
   @onUnload: terminate()

modules/game_questlog/questlogwindow.otui

@@ -1,22 +1,22 @@
 QuestLabel < Label
   font: verdana-11px-monochrome
-  background-color: alpha
   text-offset: 2 0
   focusable: true
-  color: #cccccc
-
-  $focus:
-    color: #ffffff
+  color: #aaaaaa
+  background-color: alpha
 
   $on:
-    background-color: #006600
+    color: #00aa00
   $!on:
-    background-color: #660000
+    color: #aaaaaa
+
+  $focus:
+    background-color: #444444
 
   $on focus:
-    background-color: #004400
+    color: #00ff00
   $!on focus:
-    background-color: #440000
+    color: #ffffff
 
 QuestLogWindow < MainWindow
   id: questLogWindow
@@ -31,7 +31,6 @@ QuestLogWindow < MainWindow
     anchors.left: parent.left
     anchors.right: questListScrollBar.left
     margin-bottom: 10
-    padding: 1
     focusable: false
     vertical-scrollbar: questListScrollBar