non-streaming sounds, this means no fade in / out, but since there are only 4 streaming sound channels it's the only sensible way; hopefully fixed potential threading issues when saving file systems; added direct support for energy systems beside UE again, to allow pulling it into a mixin, instead of having it at the top-level tile entity - this is mainly to avoid confusing the crap out of ic2's power system in combination with the robot proxy, but also avoids stuff like cables showing up in openperipherals; with all the scala synthetic classes this is all kinda tightrope-walk-ish so i added some custom interface and method stripping to the class transformer for oc classes (cleans up said synthetic classes quite nicely); this will probably be hell to merge into 1.7...; also adjusted localization files to represent the change in power support