debian: overwrite should always be defaulted

i.e. do not attempt to overwrite even if it was set in a previous run
Update changelog for 0.0.85 release
debian: ccnq-base no longer exists here
debian: trying to provide better package descriptions
debian: better interlock of ccnq3 packages versions
Update changelog for 0.0.86 release
debian: save a tree, clean the cache
host: filter provisioning replication to not include design documents
restrict number of revisions on (non-logging) databases
compact_design!
provisioning replication: locate provisioning documents properly
dns: shuffle responses for A, AAAA, and NS

This is to help with load balancing.
Update changelog for 0.0.87 release
dns: shuffle should handle invalid input better
Update changelog for 0.0.88 release
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