Fixed compiler to recognize/stop on all errors
Merge pull request #67 from kaitlinhuben/master

Fixed compiler to recognize/stop on all errors
Some code cleanup
Added "lang=None" recognition back in
Changed bad lang to new type of error
Merge pull request #68 from kaitlinhuben/master

Code cleanup, added lang=None back in, and changed bad lang to new kind of error
Updated README
Merge pull request #69 from kaitlinhuben/master

Updated README
Merge remote-tracking branch 'upstream/master' into test
working hello world test