Changeset 5528 for data/media/overlay/hudtemplates3.oxo

Cleaned up level directory.

Levels (*.oxw): /levels/
Includes (*.oxi): /levels/includes/ (for example weaponsettings1.oxi)
Templates (*.oxt): /levels/templates/ (formerly spaceshiptemplates_*)
Huds (*.oxo): /overlay/ (moved from /levels/ to /overlay/)

Old level files and other stuff was moved to /levels/old/. This directory is not used, but serves as an archive.

For the weapons branch (and the trunk after weapons will be merged), change line 37 in /levels/templates/spaceship_assff.oxt from weaponsettings1 to weaponsettings2 to be able to shoot again.