Remove massive power drain from telesci portal

[Wraithcraft]

the most common problem with the teleporter portal for me is the fact that someone new to telescience will likely press toggle portal instead of send (portals woo), draining telescience's apc. i think that this isn't a mistake thats repeated often, but the powerdraw is inconvenient to deal with in many situations where you need to use a portal, and could be easily remedied by just decreasing the power it uses. does draining 1-2% of the apc's charge every second sound good?