Catalyst

Core:

• Added signals (events you can subscribe to in your code).
• Added generic block network system.
• New utility methods.
• Added proper init to tile entities.
• Added absolute world time counting.
• Added framework for tile entities extendable with features.
• Added more functionality to NumberUtil.
• Misc improvements and bugfixes.

Multiblocks:

• Made multiblock integrity verification use signals.
  • Integrity will be verified only on block changes to the multiblock, not every X ticks.

Fluids:

• Move fluid extraction to base fluid tile entities.
• Remove old, non-working and unused mechanic (pressure in fluid pipes).

Energy:

• Added 2 new energy systems making use of the new catalyst block networks:
  • Simple: Operates on simple numeric energy values.
  • Electric: Incorporates voltage tiers, amperage and loss over distance into the energy network.
• Old one is still available but is deprecated.