Make budget part of discussion

Write short how much money was spent
and add expenses appendix
Remove component list pdf
Add component and pcb purchase lists
Redo component purchase list
Add budget references and cost justification

Uncertain if 'why' is necessary.
Should possibly just state the cost
and be done with it
Fix label issue
Update expenses appendix
Merge branch 'master' into budget
Update expenses file
Merge branch 'master' into budget
Update references
Update setup
Rename FPGA order PCB order, move budget 2 subfile
Update budget text
Update expenses table
Update text
Merge pull request #41 from dmpro2014/budget

Make budget part of discussion