Merge pull request #7 from seanmikalson/master2

Lock down objects when connected
Merge pull request #8 from seanmikalson/master2

Don't display connected mounting points; keep all else
Merge pull request #9 from seanmikalson/master2

Fix mounting markers reappearing when placed
Merge pull request #10 from seanmikalson/master2

Add instructions
Added last two objects
Missing piece in keeping markers upon first connection