Add count of tests
Merge branch 'master' of https://github.com/bis12/eecs345-interpreter

* 'master' of https://github.com/bis12/eecs345-interpreter:
  Add count of tests
Fix test 19
Fix test 15
Fix test 16
Fix test 15 for real
Fix test 17
Fix this #t/#f garbage, and also test 18
Fix test 2
Fix tests 21 and 23 simultaneously

http://ih1.redbubble.net/image.11907026.4950/flat,550x550,075,f.jpg
Fix test 22
Fix test 9
Tweak some things for binary operands
Add two more tests for things that were bugging me