Fix heart + bubble bar size on different texture packs
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
Add a limit to node meta data resolving recursion
Add write_json() to the async API
Organize builtin into subdirectories
Merge remote-tracking branch 'minetest/master'

Conflicts:
	doc/lua_api.txt
Write less unmidified blocks to disk
Use "core" namespace internally
Remove old dout from map
Fix windows build
Merge pull request #80 from CraigyDavi/fix-windows-build

Fix windows build
Better profiler output
Split too long updateDrawList
Fix warnings
Fix healthbar not beeing hidden on disabled damage
Fix possible deadlock in error conditions
Fix error messages beeing shown on pressing cursor keys in various menus
Fix incorrect scaling of customized hud item selection marker
Fix invalid cast fix resulting in chat messages beeing limited to 256 bytes
Send max number of characters instead of asserting in case of too long chat messages
Don't throw exceptions.