Jaffas and more!

0.7.2b

- rewritten power sources extraction (they are working with internal power storage now), fixes not working energy pipes from other mods
- added energy bar and generated power amount to power source GUIs
- partially fixed compatibility with mods using older version of Redstone Flux API

0.7.2a

- updated to latest RedstoneFlux API

0.7.2

- added unfailing water bucket (endless portable water supply)
- moved to Redstone Flux power
- fixed entity registration (lead to conflicting IDs)
- BuildCraft power integration made more robust (unexpected behaviour of BC API) <- only applies to PRE1 version
- refactored out power source behavour from generator and wind generator to machine tile class
- fixed power string in wind generator GUI
- added power amount label to generator GUI
- added power unit to label of power machines GUI