abort if `pebble` is not on path
command line switch --verbose
use snake_case on files and folders
add external build tool target to xcodeproject and use pebblex to perform this
refactoring: extract common logic + print version
version bump to 0.0.2
make compatible with AppCode
updates to readme
command "debug" that deploys PBW and logs + screenshot to explain how this can be configured in AppCode
version bump to 0.0.3