Merge pull request #11 from outbounder/develop

removed console log, release 0.0.6
Merge pull request #13 from outbounder/develop

release 0.0.7 & master sync
Merge pull request #14 from outbounder/develop

release 0.0.8
Merge pull request #15 from VarnaLab/develop

sync
Merge pull request #16 from outbounder/master

merging released fixes to upstream
change in the implementation of Plasma, API not changed
Merge pull request #18 from vbogdanov/master

change in Plasma implementation to allow future tweaking
added support for optional sender for Plasma.on handlers