Revert "add celery queue for haystack"

This reverts commit 890ecc54f635314efbbfa66428c5419d05f56eaf.
Revert "move haystack updates to Celery"

This reverts commit 1bde75c47ab6802ce5f777c2b92e176ff3c06288.
solve elasticsearch timeout the non-stupid way
start importing future semester a little earlier