Merge branch '80559928_Resources-API' into develop

A number of fixes have been introduced, which are worth
bringing into `develop` even before the actual story is
complete (or even started, for that matter).
Modified coverage settings to make use of Coverage SBT plugin 1.0.0 and exclude auto-generated classes
Updated support for coveralls
Merge branch 'develop' into 80559928_Resources-API
[#80559928] Added create (POST) API; refined and started to unify handling of common parts; the actual user is now associated with request, even if validation is disabled, if it exists