example usage 
bin/pairsee --root ../../my_code --after 2012-07-10 --config ../../foo/config/config.yml
pairsee --extras --root ../../my_code
pairsee --latest --after 2012-09-01 # this outputs pairings by most recent by all devs who have committed since given date (purpose of this is to exclude people who are no longer committers)

Options:
     --root, -r <s>:   Folder in which .git folder is (default: .)
   --config, -c <s>:   location of config file, example: ../../config/config.yml (default: ../../config/config.yml)
    --after, -a <s>:   Date since which you want to get commits, in yyyy-mm-dd format (default: 0-1-1)
       --extras, -e:   See all commits without the name of any dev in them
       --latest, -l:   See dates of most recent commits by pairs
  --recommended, -o:   See active devs who have not paired (and therefore should)
         --help, -h:   Show this message

to put on path:
ln -s `pwd`/bin/pairsee ~/bin

to run tests:
rspec

Config file: config/config.yml
contains names, a la
names: Person1 Person2 Person3