fixed export crash.
Merge branch 'master' of github.com:jupiter-jazz/Mayaseed

Conflicts:
	scripts/ms_export.py
Merge pull request #97 from jonathantopf/master

Bug fixes and detect alpha added
changed a label ("Thin Lens", not "Thinlens").
enable Autodetect Alpha by default.
fixed regression introduced in b0dcf3634950625c35868dd2a6ebd77d2c31e982 (changed a label: "Thin Lens", not "Thinlens").
Merge pull request #99 from dictoon/master

Minor tweaks.
set camera controller target to 0,0,0
Merge branch 'master' of https://github.com/jupiter-jazz/Mayaseed