Fixes #540 cloning welders
Fixes #486 examining jetpacks
Fixes #532 cyborg camera names
Fixes #510 attack windows with rods
Fixes #533 helmet sprites don't update
Fixes #667 AIs picking up stuff from rechargers
Fixes #672 Shards cut you when you put them into your bag
Moves the shard define into glass.dm
The "You step in the broken glass!" message only appears if you aren't wearing shoes.
Other misc changes and fixes.
Merge pull request #666 from Petethegoat/i_know_what_youre_thinking_did_i_fix_six_bugs_or_only_five

A fistful of fixes