* Add polls
Fix#1629
* Add tests
* Fixes
* Change API for creating polls
* Use name instead of content for votes
* Remove poll validation for remote polls
* Add polls to public pages
* When updating the poll, update options just in case they were changed
* Fix public pages showing both poll and other media
* Fix stack overflow on importFetchedAccounts
When the account has moved property, it should process destination
account instead of source account itself.
* Set account id instead of account object for moved property
This restores "foo has moved to" indication on account view, and
fixes `reblog` index on `accounts` object store.
