V2.1.1 (rq queue bugfix)

Release V2.1.0

update library.properties to V2.0.0

improved/corrected prog button debouncing (thelsing#221)

Co-authored-by: Waldemar Porscha <[email protected]>

Update library.properties

Merge branch 'master' of https://github.com/thelsing/knx

use current config