Provide getNode() on sender, handle multiple (de)registerNode
Merge branch 'master' of https://github.com/BlueBrain/codash
Do not mess with UUID of co::Object to enable multiple receivers in the same process (conflicts with instance cache)
Merge pull request #12 from tribal-tec/master

Do not mess with UUID of co::Object to enable multiple receivers in the same process (conflicts with instance cache)