first pass at getopt version
adding more getopt formats
Move all file type bits to mixin
testing for missing args, change single letter types to double letter
Add colorize for highlighting matches
Changing omit file type flags to be --no-foo instead of --nofoo
Fixing '.' directory on OSX
hiding extra dub file
Merge branch 'getopt' of github.com:rwtolbert/sift into getopt
Mix of getopt and docopt for easiest path to CLI
Adding small struct to hold colors
Code to test for and display valid color choices