Bugfix 1593882 and 1593883 - projector authorization
- Fix exception when authenticated connection requested and pin is None
- Fix pjlink authentication (use python hash instead of qt hash)
- Fix md5_hash functions
- Fix qmd5hash functions
- Added tests for bugfixes
Tested with test server and Eiki XL200 projector
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lp:~alisonken1/openlp/bug-1593883-projector-authentication (revision 2684)
[SUCCESS] https://ci.openlp.io/job/Branch-01-Pull/1629/
[SUCCESS] https...