support --sources (aka -r) in rrd daemon
Implement --template option to rrdtool create
add --template documentation
add dc package to travis install requirements
fixup implement new test style
Make rrd create work via the caching daemon
Improve test suite. Allow to have tests run using a local rrdcached instance
using the TESTS_STLYE environment variable (Set it to 'rrdcached')
Have travis run rrdcached based tests as well