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.
changelog
FIX: unreachable .cvmfswhitelist kills `cvmfs_server list`
Merge pull request #402 from reneme/fix-expiry_error

FIX: Unreachable .cvmfswhitelist Kills `cvmfs_server list`
changelog
Merge branch 'fix-changelog' into devel
Merge branch 'devel' of github.com:cvmfs/cvmfs into devel
FIX: ignore stderr on bash completion
Merge pull request #403 from reneme/fix-bash_completion_stderr

FIX: Ignore stderr on Bash Completion
add a timeout to wait_for_instance()
add is_running() predicate
return instance even if broken
FIX: exception printing
retry to spawn broken instances
Merge pull request #404 from reneme/workaround-retry_openstack

Workaround: Retry Failed Openstack Instances
fix preloading cache