Move files into position for gradle. Add referenced APIs for 1.6.4
Add gradle setup. Include build number in version

Still doesn't build.
Change files (api and main) so it compiles and builds
Fix language file, Change location of textures + make more maintainable
Ignore .directory files
Fix textures
Use proper (older) version of BC api for 4.2.2
Move common block registration to preinit.

Should fix zerotheliger/PowerConverters#21

Conflicts:
	src/minecraft/powercrystals/powerconverters/PowerConverterCore.java
Fix naming of BC producer/consumer
Fix fluid class to test for in steam consumer class.

Should fix zerotheliger/PowerConverters#23
Invalidate TileEntity on chunk unload

From MichiyoRavencroft/PowerConverters@7611428cb8551949958fa7f20b958be1e8195421
Move to gradle, clean up language and texture code and files.
Merge branch 'bugfixes'. Fixes a few bugs