make logger final
resolve compiler warnings
index protocol tree when indexing dataset
revert changes (remove dependency on molgenis-omx-core)
move protocol tree indexing from elasticsearch mod to omx-core
fix compile errors
fix download in protocol viewer
protocol viewer search depends on search API
add index tab to admin menu
add dataexplorer and search modules
add search and data explorer configurations
Merge pull request #386 from dennishendriksen/master

Move protocol tree indexing to omx-core module + small stuff