Bug#1016597: vtk7: do not release with bookworm

[Sebastian Ramacher]

Source: vtk7
Version: 7.1.1+dfsg2-10.1
Severity: serious
Tags: sid bookworm
Control: block -1 by 1013153 1013158 1013156 1013157 1013190
X-Debbugs-Cc: sramacher at debian.org

Bugs have been filed against (some of?) the reverse dependencies. This
bug is here to ensure that vtk7 is not released with bookworm.

Cheers
-- 
Sebastian Ramacher