Imported Blender export script.
Script to merge subtree branch 'io_scene_json'.
Squashed commit of the following:

commit e9e62dd32c7f1e34bd0fc6b3b64f34c755e6df8e
Author: Henry Kielmann <henrykielmann@gmail.com>
Date:   Sat Mar 29 21:44:24 2014 +0100

    Removed unneeded complex constructor.

commit 54ca805499ad400789096ed7afdd8a910fbbcb4f
Author: Henry Kielmann <henrykielmann@gmail.com>
Date:   Sat Mar 29 21:32:31 2014 +0100

    Removed duplicate statement.

commit 8df7f64d6444e5ec555832e39e8f6b3407f82cad
Author: Henry Kielmann <henrykielmann@gmail.com>
Date:   Thu Mar 27 19:47:24 2014 +0100

    Initial commit
Fixed mesh bugs.
Replaced ply with json exporter.