Issue #2921858 by jurgenhaas: Improve provider UX
Bugfix to allow same machine name for different PI account types
Issue #2922706 by jurgenhaas: Implement dashboard authorization by server secret
Fix db requirements
Issue #2921906 by jurgenhaas: Re-use sessions when auth method is username/password
Bugfix for older PHP version syntax in D6 agent
Bugfix in the ping action plugin
Issue #2922152 by jurgenhaas: Update plugin composer should get its isolated cache directory