[DRE-maint] diaspora is marked for autoremoval from testing

[Debian testing autoremoval watch]

diaspora 0.6.0.0+debian-7 is marked for autoremoval from testing on 2017-01-16

It (build-)depends on packages with these RC bugs:
842607: ruby-fog-rackspace: FTBFS randomly (undefined method flavors')
846738: ruby-uglifier: FTBFS: ERROR: Test "ruby2.3" failed: Failure/Error: expect(Uglifier.new.compile('var foo="\0bar"')).to include("\\x00bar")
847286: diaspora-installer: installs world-writable files under /usr/share/diaspora/vendor/bundle/ruby/2.3.0/gems
847450: ruby-celluloid-io: FTBFS randomly (Failed examples: [...] mailbox_spec.rb)
848294: diaspora-installer-mysql: update mysql dependencies for mariadb