FreenetIS

Fixes #1092: User birthday can be no longer mandatory. Administrator can disable mandatory field in settings.

Merge branch 'issue-1094' into 'master'

Fixes #1094: Allows to delete former member older than 5 years.

See merge request freenetis/freenetis!42

Merge branch 'issue-1093' into 'master'

Fixes #1093: Allows to set registration field during member adding.

See merge request freenetis/freenetis!41

Merge branch 'issue-1076' into 'master'

Fixes #1076: member expiration date calculation fix for debts

See merge request freenetis/freenetis!39

Fixes #1094: Allows to delete former member older than 5 years.

Fixes #1093: Allows to set registration field during member adding.

Fixes #1076: member expiration date calculation fix for debts.

Fixes #1075: Getting MAC from DHCP leases through SNMP on Mikrotik devices with RouterOS 6.35>= by ignoring leading 2 MAC octets.

Prepare release 1.1.21

Merge branch 'issue-1065'