Fixes potential server crash.
Merge branch 'OC1.3-MC1.7.10' of github.com:MightyPirates/OpenComputers into master-MC1.7.10
Fixed graphical glitch caused by floppy item renderer when it was the last before rendering armor slots.
Merge branch 'OC1.3-MC1.7.10' of github.com:MightyPirates/OpenComputers into master-MC1.7.10
Made all blocks 'harvestable' bare handed.
Handling missing external save data more gracefully.
Merge branch 'master' of github.com:MightyPirates/OpenComputers into master-MC1.7.10

Conflicts:
	src/main/scala/li/cil/oc/common/block/Delegator.scala
	src/main/scala/li/cil/oc/common/tileentity/traits/power/BuildCraft.scala
	src/main/scala/li/cil/oc/common/tileentity/traits/power/Factorization.scala