Changes

Summary

1. fix crash bug on null item/block mappings (commit: d4b6be2) (details)
2. fix an error when loading a blueprint with invalid mappings (commit: 2f94b90) (details)
3. fix #2649 (commit: fc3ebfb) (details)
4. backport pump entity spam fix, fix #2650 (commit: f3844b7) (details)
5. fix #2639, add #2632 (commit: ef5ed24) (details)
6. fix #2638, #2629 (commit: f7b5c86) (details)
7. BuildCraft 6.4.12 (commit: 28bb963) (details)

Commit d4b6be21b0cabcd14588d8d16394292bb56d54af by asiekierka fix crash bug on null item/block mappings (commit: d4b6be2)
	api/buildcraft/api/blueprints/MappingRegistry.java (diff)
Commit 2f94b90f831c857bb12d8fbef95b3133d9ee0575 by asiekierka fix an error when loading a blueprint with invalid mappings (commit: 2f94b90)
	api/buildcraft/api/blueprints/MappingRegistry.java (diff)
Commit fc3ebfbb8dbf236f16850bb47f08d7338caf8dd8 by asiekierka fix #2649 (commit: fc3ebfb)
	common/buildcraft/energy/BlockBuildcraftFluid.java (diff)
	api/buildcraft/api/blueprints/MappingRegistry.java (diff)
Commit f3844b74b29ae314e2d3bb204144344a0efb5c0d by asiekierka backport pump entity spam fix, fix #2650 (commit: f3844b7)
	common/buildcraft/core/builders/patterns/PatternHorizon.java (diff)
	common/buildcraft/factory/TilePump.java (diff)
Commit ef5ed249796ab8b22b5a0ba2e72f8c87fa0d714b by asiekierka fix #2639, add #2632 (commit: ef5ed24)
	common/buildcraft/core/utils/BlockUtils.java (diff)
	api/buildcraft/api/statements/StatementParameterItemStack.java (diff)
Commit f7b5c86f66a07515b267f5ca3c024ebb3b3861ee by asiekierka fix #2638, #2629 (commit: f7b5c86)
	common/buildcraft/transport/stripes/StripesHandlerPlaceBlock.java (diff)
	common/buildcraft/transport/pipes/PipeFluidsWood.java (diff)
Commit 28bb9639e1e313a829547f0d501312ded5420f6d by asiekierka BuildCraft 6.4.12 (commit: 28bb963)
	buildcraft_resources/versions.txt (diff)
	common/buildcraft/transport/stripes/StripesHandlerPlaceBlock.java (diff)
	build.gradle (diff)
	buildcraft_resources/changelog/6.4.12