WIP - added usage and DIR
Removed flags
Merge branch 'master' into lunchbox

Conflicts:
	lunch.bash
Removed lunchbox file
Added data file check
Update README.md
Added default places.

- Added list of generic default places.
- Added input file validation.
Updated README.md
Separate private / public functions
Merge pull request #5 from hunzinker/lunchbox

Lunchbox