remove Makefile dependency on xcpretty using ruby scripts
add frank rule to Makefile 'make frank'
build-frank.sh now calls 'make frank'
travis should call 'make frank'
travis should test make w/o xcpretty
script to do what travis does locally
Merge pull request #53 from jmoody/feature/only-use-xcpretty-when-it-is-available

only use xcpretty when it is available