WINDUP-73 Logging, JUL
WINDUP-73 Logging, JUL - Logging.init()
Merge pull request #148 from OndraZizka/WINDUP-73-Logging

WINDUP-73 Logging, JUL
JavaDoc
Merge pull request #155 from OndraZizka/GraphServiceJavadoc

JavaDoc
WINDUP-147  GraphService.persist() to store classes implementing the model interface.