Fixed table:remove(N) not working at all if N was 0 or negative
Fixed table:remove(N) not working at all if N was 0 or negative

Ideally it's not meant to be used at all on indexes lower than 1, but if
the user wants to, I made them simply delete the value. Seemed like the
most logical compromise. Better than having them not do anything and
decrease the size value anyway.

thegrb93/wire,CaptainPRICE/wire,dvdvideo1234/wire,notcake/wire,bigdogmat/wire,mitterdoo/wire,NezzKryptic/Wire,Grocel/wire,sammyt291/wire,garrysmodlua/wire,wiremod/wire