* Bump Standards-Version to 3.9.3 (no other changes necessary)
* Switch to source format "3.0 (quilt)"
* Add patch to fix FTBFS with -Werror=format-security
+ * Add slightly modified patch by Ulrich Eckhardt to provide better
+ diagnostics for directory renaming (Closes: #584850)
* Rewrite debian/rules with oldstyle debhelper utilities
+ Use compat-level 9
+ Add build-dependency on debhelper >= 9~