v5.5.4 Pre-Release #4

*Updated IC2 API.
*Fixed a few bugs in LinkedPowerProvider.
*Fixed Electric Chest NBT data save.
*Registered all items with GameRegistry.
*IStrictEnergyAcceptor for @liquidgithub.
API changes

*Renamed BlockWrapper to BlockVector.
*Moved BlockVector to API.
Improvements!

*Inventory-based Electric Chest animation.
*Cleaned up build script.
*ItemRenderingHandler now initially handles machine textures.
Fixed MekanismTools module build.
*Electric Chest item-based close animation now occurs in entity form.
*Made liquids render in Mechanical Pipes.
*Made energy render in Universal Cable.
*Fixed electric pump not outputting it's liquid.
*Made Heat Generator only accept lava as a liquid fuel source.
*Migrated Heat Generator to use LiquidTank instead of LiquidSlot.
*Client-integrated transfer protocols.
v5.5.4 Golden Master #1

*Fixed Sound volume update crash, thanks Cisien.
*Obsidian TNT can now be pushed like ICBM explosives.
*Refactored TileEntities to only operate on the server-side.
*Universal Cables and Mechanical Pipes now have their render state
updated on the server-side, and it is synced to the client whenever
necessary.
*Other various improvements -- liquid & energy transfer is now
server-based only.