restore inventory and healthbar

* make inventory/healthbar work again allowing reload
* changes in top menu toggle buttons
* all modules are now reloadable by default
* fix warning when using fade in
* remove some unused files

modules/game_skills/skills.lua

@@ -41,14 +41,14 @@ local function setSkillPercent(id, percent, tooltip)
 end
 
 -- public functions
-function Skills.create()
+function Skills.init()
   skillsWindow = displayUI('skills.otui', GameInterface.getRightPanel())
   skillsWindow:hide()
   skillsButton = TopMenu.addGameButton('skillsButton', 'Skills (Ctrl+S)', '/core_styles/icons/skills.png', Skills.toggle)
   Keyboard.bindKeyDown('Ctrl+S', Skills.toggle)
 end
 
-function Skills.destroy()
+function Skills.terminate()
   Keyboard.unbindKeyDown('Ctrl+S')
   skillsButton:destroy()
   skillsButton = nil

modules/game_skills/skills.otmod

@@ -6,3 +6,7 @@ Module
 
   @onLoad: |
     dofile 'skills'
+    Skills.init()
+
+  @onUnload: |
+    Skills.terminate()