CRAFTBOOK-3169 - Reported by Trainerredstone7

Whenever I try to use a negative relative coordinate on the Ranged Collector (MC1214) IC in the 1.8.8 version of Craftbook, the coordinate system switches to offset coordinates instead. The problem might apply to more than just Ranged Collector, but I've only tested it for that IC.

How to reproduce:

1. Create a Ranged Collector sign facing in the positive z direction. On its third line, write "1=-1:0:0"
2. Place a chest above the block the sign is attached to.
3. Drop an item in the same block as the sign.
4. Trigger the sign.
   Expected behavior:
   The sign picks up the the item, since the relative coordinates are centered on the block to which the sign is attached, and the negative x direction is in the direction of the sign (according to relative coordinates).
   Actual behavior:
   The sign fails to pick up the item. If you drop an item next to the global negative x side of the block to which the sign is attatched and trigger the sign, the sign will pick that item up.

This same problem applies to the x axis (and probably the y axis, but it doesn't matter there since the relative and global y directions are the same).