box and whiskers: use parent min/max in case of inhomegenous nested
table perspectives
fix #1752 non-genetic initial state
#1755 box plot outliers (deactivated by default)
Merge branch 'develop' of git@github.com:Caleydo/caleydo-dev.git into develop
fix #1742
Merge branch 'develop' of git@github.com:Caleydo/caleydo-dev.git into develop