Blocked users extension#37

Draft

Smjert wants to merge 7 commits intotrailofbits:masterfrom

Smjert:stefano/feature/blocked_users

Commits on Sep 30, 2018

Commits on Oct 16, 2018

Make insert, select and delete thread safe
Smjert
committed

Commits on Oct 18, 2018

Add missing copyright
Smjert
committed

Commits on Nov 4, 2018

Commits on Nov 18, 2018

Implement optional user logout with systemd and libproc
Smjert
committed