set default hub branch to master in cscli (crowdsecurity#279)

fix ban flush (crowdsecurity#277)

* fix ban flush by soft-deleting entries in database
* fix unit tests accordingly

add randomness to machine-id when registering. (crowdsecurity#261)

* add randomness to machine-id when registering.

* add some regexp check for machine_id

* typo fix

* fix cwapi unit tests

use hub master if we are in pre-release (crowdsecurity#196)

Co-authored-by: AlteredCoder <AlteredCoder>

add support for 'prometheus_mode' configuration directive that can be…

… set to 'aggregation' to limit the cardinality of prometheus metrics (crowdsecurity#192)

fix expr debugger (crowdsecurity#178)

Co-authored-by: AlteredCoder <AlteredCoder>

add a basic functional tests in the CI (crowdsecurity#169)

fix version release

fix cwapi bug with new sling usage (crowdsecurity#157)

* fix sling usage

Co-authored-by: AlteredCoder <AlteredCoder>

fix ban deduplication (crowdsecurity#143)