Diagram and superdrafty text
Add data usb input circuitry picture
Merge branch 'master' into pcb-input

Conflicts:
	report/pcb/pcb.tex
Finish merging master into branch
 register directory diagram and text
Registers text and masking diagram
Missed masking diagram
small fixes
Mention LSU lines
Use Read/write in table
Rewrite the bus section
Add mask enable to diagram
Add info about MCU.
fix figure
Merge pull request #30 from dmpro2014/pcb-input

Pcb input
Fix typos and remove redundent word.
Respond to feedback
Processor cores start
Remove commented out stuff
respond to comments