Fix CI branch target

Drop Python 3.6 support

update readme

remove references to online API from module docstring

Merge branch 'master' of github.com:provinzkraut/cologne_phonetics

update version number

update readme

fix positional args before kwargs

Release 1.1.0

changed malformed cli-option "-nc"
fixed missleading "-concat" option in readme
fixed missleading "concat=False" behaviour

Release 1.0.2