Resolve "Membership form and link to source code not working"

Closes #942

See merge request !1530

Resolve "Humanverification seems to be not resetting"

Closes #938

See merge request !1519

Resolve "Use Redis as Cache backend"

Closes #937

See merge request !1517

Resolve "Attach error log to stdout instead of the access log"

Closes #936

See merge request !1514

Resolve "Test Proxy Forwarding"

Closes #935

See merge request !1512

Resolve "Implement Timing output"

Closes #934

See merge request !1507