first implementation of persistance layer, untested but it compiles
set of filter replaced with a FilterSet, removed some minor issues
use sqlite database as delegate
add sql class to be able to distinct values
divide in packages
move table declarations and give it a structure
implement write persistance layer
change some Query interfaces
introduce executor
renaming & cleanup
renaming & cleanup
devide Counter
add delete operation
improve sql manipulation possiblities
improve sql manipulation possiblities including limit
rmove some Override annotations
devide Mapper and Creator
cleanup
cleanup
fix some sql generation errors at runtime