fix DateTime handling
add CharOneTransform
add test for all attribute types
initial implementation of optimistic versioning
bump version to 0.5.0
[maven-release-plugin] prepare release kazuki-parent-0.5.0
[maven-release-plugin] prepare for next development iteration
fix for enum query issue
[maven-release-plugin] prepare release kazuki-parent-0.5.1
[maven-release-plugin] prepare for next development iteration
fix for schemastore retrieve exception on undefined type
[maven-release-plugin] prepare release kazuki-parent-0.5.2
[maven-release-plugin] prepare for next development iteration