fixed connector status reporting bugs

A lot of connectors continue to try to update even though there are in a hopeless situation.
see https://app.asana.com/0/790107150363/15610210902750
Note: this batch of fixes only addresses correctly reporting the status of a connector update
removed screen_name from statuses API call

generates 404s for people who have changed it
use utf8mb4 for MovesPlace's name column

see https://app.asana.com/0/790107150363/15662593247635
Request the userRegistrationDate at each incremental update

The userRegistrationDate apparently gets reset which causes date bounds errors when using the original one

see https://app.asana.com/0/790107150363/15687948091041
Revert "fixed connector status reporting bugs"

This reverts commit bd5fcb2566a87fe7781475d61d598033c6629297.

Conflicts:
	fluxtream-connectors/src/main/java/org/fluxtream/connectors/moves/MovesUpdater.java
	fluxtream-connectors/src/main/java/org/fluxtream/connectors/twitter/TwitterFeedUpdater.java
Merge branch 'wip/updater-fixes' into hotfix/zombie-threads-fix