add support for --in-application and --in-directory
add support for search (not just full listing)
add support for verbose logging (useful for debugging purposes)
tiny style fix in doc
extract resource and resource data helpers into separate functions

They're needed from other modules.
add support for creation, updating and deletion of resources
main: trap exceptions and display them nicely to the user
docopt: document the -F (--force) flag
tiny doc wording tweaks