* Pipelining and performance optimisations
* Refactor to remove handle_remainder and add on_response callback to allow inspecting of nntp messages
* Logic fix if there are sockets but nothing to read/write
* Fix logic errors for failed article requests
* Fix logic for reconfiguring servers
* Add guard_restart callback to pipelining_requests
* Fix article download stats
* Fix current article request shown via api
* Removal of DecodingStatus
* Fix circular reference
* Cleanup imports
* Handle reset_nw and hard_reset for inflight requests
* Improve __request_article behaviour using discard helper
* Article should be None here (before auth) but just in case
* Remove command_queue_condition unnecessary with the pull rather than push queue system
* During reset discard any data received prior to sending quit request
* Circular references again
* Revert to using bytearray
* Revert "During reset discard any data received prior to sending quit request"
This reverts commit ed522e3e80.
* Simpler interaction with sabctools
* Temporarily use the sabctools streaming decoder branch
* Fix most uu tests
* Reduce maximum pipelining requests
* Fix the squiggly line
* Remove some LOG_ALL debug code
* Make get_articles return consistent (None) - it now populates the server deque
* Reduce NNTP_BUFFER_SIZE
* Rename PIPELINING_REQUESTS to DEF_PIPELINING_REQUESTS
* A little refactoring
* Reduce default pipelining until it is dynamic
* Use BoundedSemaphore and fix the unacquired release
* Use crc from sabctools for uu and make filename logic consistent wit yenc
* Use sabctools 9.0.0
* Fix Check Before Download
* Move lock to NzbFile
* Use sabctools 9.1.0
* Minor change
* Fix 430 on check before download
* Update sabnews to work reliably with pipelining
* Minor tidy up
* Why does only Linux complain about this
* Leave this as it was
* Remove unused import
* Compare enum by identity
* Remove command_queue and just prepare a single request
Check if it should be sent and discard when paused
* Kick-start idle connections
* Modify events sockets are monitored for
