Added ScriptSource
PRIS-76: Added ScriptSource
Merge branch 'feature-groovy-source' of https://github.com/OpenNMS/opennms-provisioning-integration-server into feature-groovy-source
PRIS-76: Added sample configuration
PRIS-76: Documentation for script.source added
PRIS-76: Fixed documentation
Enhancement PRIS-76: Allow JSR-223 scripts as source

Merge branch 'feature-groovy-source' into develop