This release supersedes the never officially released 0.17.0-beta
This contains Fixes and additions from @NodeGuy, @phiferd, @pedrobranco, @federicobond, @jbaylina, @YESPPG and @gaiazov. Mainly fixes on the contract call decoder and async fixes.
This also adds the experimental Swarm API. Please be aware that it might change.
The main work is right now going on the 1.0 branch. To follow the work take a look at the PR #423