* Squashed 'bridges/' changes from 0f6091d481..c9dd8b9dfc
c9dd8b9dfc expose test utilities to be used in BH paras (#2142)
334df22361 Ws-port argument has been repalced with rpc-port (#2140)
106173cb91 fix nodes startup (#2138)
git-subtree-dir: bridges
git-subtree-split: c9dd8b9dfc8b48014d119153032589ac39c18c9a
* tmp
Branislav Kontur