Begin of mapcrafter js part refactoring, moved all handlers/controls
to separate files.
Adjusted control/handler base class names.
Renamed some controls/handlers.
Started renaming some functions.
Renamed some more stuff.
Refactored/documented some Javascript code.
Removed automatic handler mechanism of controls.
Removed old getName method of control widgets and replaced it with
a type attribute.
Changed tileset to tile_set and blockimages to block_images.
Refactored directory structure of static template files.
Merge branch 'refactoring'

Conflicts:
	src/renderer/tilerenderworker.cpp
Updated readme and version file to 1.2.
s/Minecraft World/Minecraft world/
Removed newline from version file (just in case).
Removed old todo file.