Also make a stray variable local.

Changes:
  * Add comments to explain the dumping code
  * Add support for dumping values of any type (as '<' <type> '>')
  * Add support for tables as keys in dump2()
  * Make dump2() return it's result (like dump()) rather than printing it
  * Simplify and optimize function serialization via serialize()

Fix doubleclick not working in singleplayer
Fix of by one issue on accessing raw list
Fix this->self
Fix copy&paste error for scroll button

Add TTL to item entities.

Add (experimental) support for topbottom as well as sidebyside 3d mode

Fix crash on using cursor keys in client menu without selected server
Add support for non fixed size tabviews

Fix client not showing hearts and bubbles on connecting to old server
Fix server not remembering hud flags correctly

Add DPI support for statbar
Move heart+bubble bar to Lua HUD
Add statbar size (based upon an idea by blue42u)
Add support for customizing breath and statbar

Minor coding style fixes