fixed bug #1 (option columnWidths broken since v0.3.2)
fixed bug #2 (commands create and export templating broken since v0.3.5)
added --download command
extended --info command
improved performance of --export command
improved error handling and user feedback
removed support for legacy docker option --link
added detailed usage instructions with examples
moved and extended instructions from docker/README.md to README.md
added usage instructions for Python library
added chapter on Binder openrefineder
added badges for docker, pypi and binder
added usage instructions for tests script
added note to myself for distributing releases
moved all functions from parser to cli module
separated export and template function
improved code style (PEP8)