* fix#1888 ether amount not updated in /send suggestion if it was initially undefined
* dummy change to trigger jenkins rebuild
* another dummy commit to trigger jenkins build
* Fix#1886
Completly rework the way how async handlers work
Delay further processing of message till async handler returns result
* Fix indent
* Fix#1903
* Implement possibility for async command handlers
Command handler can now return results asynchronously,
and those results as saved and persisted, indexed by
command message-id.
* Address feedback raised in PR comments
* Different handler codes + simplified error message