start reimplementing audit logging support refs #25
add actions to logging
progress towards getting edit user roles working
working edit roles support based on unit test
add default character set to metadata service
rename variables to understand what is going on with the edit user roles logic
ensure that users can only submit assignable roles as new roles
support getting username and query parameters out of both the query
parameters and the posted entity
Merge branch 'feature/edit-user-roles' into develop
bump to 0.5
Merge branch 'release/0.5' into develop