Added running state to LMC object.
Changed MIN_MEM_SIZE to LMC_MEM_SIZE to reflect fixed memory size of 99 slots.
Added input and output method stubs.
Added delegate callbacks to LMC
Fix input/output opcode detection bug
Added targets for step, reset, and editing fields
Changed argument to putOutput to NSNumber so it can be invoked by performSelector:
Fixed halt command
Added register textfields