Merge pull request #179 from Particular/ValidUntil

Dont store Timespan in ValidUntil
removing the hashing function
Added logging statement indicating the reasons that locks expire
should not call complete when transactionless, fixes #183
Merge branch 'hotfix-6.0.2' into develop
Addition logging on asset creation
Merge branch 'hotfix-6.0.3' into develop
closes #187
Closes #137
Closes #159
autocreating topic when subscribing & cleanup of some unused code
Adding Azure databus definition to to address issue #195
updated to 5.1
closes #176
Closes #180
fix for #157
implementation of extension methods to configure databus
Fixing incorrect property type
refactored
Fix to error message