Merge pull request #772 from bugzmanov/fb-remoting

[RJA-1648] some bugs with creator email lookup
[RJA-346][feature] Show version of OpenGenesis and RJGenesis in UI;
Merge pull request #771 from azhuchkov/genesis-version

[RJA-346][feature] Show version of OpenGenesis and RJGenesis in UI;
[RJA-1631][fix] Frontend returned 503, but UI doesn't say anything, it's just hanged
[RJA-1583]UI: Error message should be more informative