Overhaul PowerTap, fix crashes & load problems

Fixes issue #9 (power taps now reconnect properly on load) and issue #11
(replacing a power tap with another block crashes Minecraft)
Bugfix: Could not insert UE fuel via automation

Automation check was hardcoded to use only BR fuel. This is now fixed.
Also fixed in the cyanite reprocessor, though I have no idea why you'd
want to stick fuel in there.
Bugfix: Mekanism Crusher fix for blutonium

Blutonium dust is no longer crushed from graphite dust, but instead from
blutonium ingots, as intended.
#13: Add powerProductionMultiplier config setting

Floating-point value to configure how much power should be produced by
the reactor overall. Quick n' simple implementation.
Fix: Power taps were not properly connecting

4d3017b broke power tap connections. Now fixed.
(0.1.12A) Version bump