refactor printing of changeset log
make changeset log an opt-in (-v)
laundry machine during non-verbose publish
verbose logging in integration tests
Merge pull request #401 from reneme/feature-silence_output

Silence Verbose Output of `cvmfs_server publish` by Default

This replaces the verbose output of cvmfs_server publish by a minimal laundry machine.
One can use cvmfs_server publish -v to get back to the old verbose logging behaviour.