Changed short to unsigned
Fixed signatures and header logic; added constants
Merge branch 'master' of https://github.com/cs3600/project3 into bobby_is_confused

Conflicts:
	3600dns.c
Merge branch 'master' of https://github.com/cs3600/project3 into bobby_is_confused
Fixed errors with signatures; Removed extra else
Added tc and ra checks; changed methods sigs
Merge pull request #13 from cs3600/bobby_is_confused

Merge