made changes to regex, made color changes for non-synonymous vs synonymous change, modified typedef for Tick
made changes to regex, made color changes for non-synonymous vs synonymous change, modified struct for Tick
Update CHANGES.md
made changes to clean code, and remove unnecessary files, added command for png to CHANGES.md
Merge pull request #3 from jimhavrilla/master

Update to incorporate non-synonymous vs synonymous mutations. Closes #2 also.