* pom: set version to 1.2.0
* pom: specify dependency versions as properties
* pom: add assertj-core as test dependency
* Add test for setting modified metadata value
* Revert "pom: set version to 1.2.0"
No change was needed waranting a ‘minor’ version change.
This reverts commit 5051fcf6bac670fffbf5fdfbb769818fee8cf637.
* Override default dcterms:modified value if provided
* pom: version set to 1.2.0
* add lombok dependency
* Add methods addMetadata and addMetadataProperty
* Version set to 1.1.0
* Introduce MetadataItem to replace multiple addMetadata methods