Fix soledad lintian warning

see https://0xacab.org/varac/soledad/builds/12885:

• changelog-should-mention-nmu
• source-nmu-has-incorrect-version-number 0.8.1+nmu1+020170622122807.12885+buildpackages+jessie146.g5083eb2d
• ancient-standards-version 3.9.6 (current is 3.9.8)
• init.d-script-needs-depends-on-lsb-base etc/init.d/soledad-server (line 29)
• binary-without-manpage usr/bin/create-user-db, see #8895 (closed)