Merge pull request #6559 from RosettaCommons/roccomoretti/fix_share_network_issues
[Foldit] Make server interactions more robust.
A traceback from [a bug report](https://fold.it/forum/bugs/copy-to-clipboard-crashes-foldit), indicates that there may be non-Foldit exceptions being thrown from Server calls. We should be able to catch that, and make sure that there's a handleable error which won't cause the client to crash.
(Note that due to indentation changes, the diff is more complicated that it really should be.)
RELEASE NOTES: Fix error handling in server interaction (copy-to-clipboard crashes)