Merge pull request #2 from looterz/master

hahahahaha I'm dumb
Fixed some issues with it running on servers.
Ugh... parenthesis.
Fixed compat.lua
Added sanity check for edge case incase someone removes a dupe less than a quarter of a second after pasting it.
Added support for rendering the inside of props.

rendering the inside of props apparently has some extremely useful edge
cases.
Inside rendering is now disable-able.
updated the tool usage text.

I should probably review each and every line change that I commit let I
accidently commit something stupid.