0.4.3

Release 0.4.3

• Last release supporting Python 3.6!
• [crashmanager] Fix view signature error handling
• [crashmanager] Remove pagination from the Bucket list API entirely
• [crashmanager] Optimize bucket tool filter
• [crashmanager] Use local sort for signatures list.
• [crashmanager] Remove management command lock and speed up triage.
• [crashmanager] Optimize bucket list query.
• [covmanager] Fix empty prefix display.
• [server] Update base template.
• [taskmanager] Fix creation of non-Linux "extra" pools.
• [crashmanager] Fix quality and optimization sorting in signatures list
• [crashmanager] Handle the case where testcase_ext is given with no testcase.