#8 Split documentation in compact and verbose

[Pieter Edelman]

At the moment, the main documentation in Happy Camel is provided by using the --help switch on the command line. This prints out quite a verbose document, which is not really suited for quick reference.

It should be better if this text is available from a more dedicated documentation document, like a man page and/or a user guide. The --help switch can than give a more terse description.

Maybe, as an extra, it can be an option to give this extra help for a specific command at user request. For example:
> happycamel --help-command write-exif
should give the long description for the write-exif command. Or something like:
> happycamel --write-exif --calibrate --help-commands
should give the long descriptions for both the write-exif and the calibrate commands.