Started upgrading jersey to version 2.7
Fjerner JAXB fra avhengigheter. Bruker JDK-provided JAXB.
slf4j 1.7.7, logback 1.1.2
commons-lang 3.3.1
Setter versjon til 5.1-jersey27-SNAPSHOT
maven-deploy-plugin 2.8.1
public final fields on representations.Document
MultipartMessage
Using stepwise or new atomic REST-API is switchable
Some cleanup.
Added "experimental feature" doc on DeliveryMethod.ATOMIC_REST
Setter versjon tilbake til 5.1-SNAPSHOT
Removes the "lifecycle-mapping" hack for Eclipse. Should not be needed.