Merge pull request #1144 from erwinwinder/master

JpaRepository and documention
Merge pull request #1146 from erwinwinder/master

Reanable SecurityDecorators
add nullcheck - input files without a dataset gave a nullpointer error.
style
Merge pull request #1147 from bartcharbon/master

add nullcheck - input files without a dataset gave a nullpointer error.
Fix omx entities for Rest api.