Update display of dec subprojects.
start work on delete animals from subproject option
cleanup the subproject ftl code.
add option to matrixviewer to intialize filtervisibility and set default
visibility for subproject plugin to false.
change default columns visible in matrix viewers for subproject plugin
Added the option to remove animals from an experiment without reporting
that in the yearly statistics (to correct errors)
Add proper errorhandling when no animals are selected for remove/delete
animals from subproject.