Delete thumbs.db
Fix bug in signs.lua

treets -> streets
Merge pull request #22 from CraigyDavi/bugfix

Thank you :)
Merge pull request #23 from CraigyDavi/delete-thumbs

Delete thumbs.db
Hotfix to avoid unknown nodes
Merge pull request #26 from CraigyDavi/hotfix-asphalt-stair

Thanks (again) :D