Timeexecution

Fixes

* FIX workaround TypeError in queue module. [Sergey Panfilov]

Fixes

* FIX TypeError if the queue in ThreadedBackend is gone. [Sergey Panfilov]

Fixes

* FIX index origin metric attribute. [Sergey Panfilov]

Fixes

* FIX make sure the worker stops. [Sergey Panfilov]

Fixes

* FIX duplicate pip call in makefile. [Sergey Panfilov]

* FIX threaded backend and tests. [Sergey Panfilov]

* FIX elasticsearch backend error resilience test. [Sergey Panfilov]

Optimizations

* OPT add bulk write to elasticsearch backend. [Sergey Panfilov]

* OPT Implement async threaded backend. [Sergey Panfilov]

Fixes

* FIX name collision of mapping template. [Sergey Panfilov]

Optimizations

* OPT improve usage documentation and describe package settings. [Sergey Panfilov]

* OPT add optional origin setting. [Sergey Panfilov]

Other

* Update setup version to 1.9.0. [Sergey Panfilov]