have preindex fail loudly

and email us rather than swallowing exceptions
run version_static after starting preindex

for slightly better pipelining
try another method to raise greenlet errors
actually swap in the new sync function i wrote...
print exception traceback
Merge branch 'multimedia-case-properties' into autostaging
Merge remote-tracking branch 'origin/sql-dailyformstats' into autostaging
Merge branch 'pretty-user-display' into autostaging
Merge remote-tracking branch 'origin/cache-locations' into autostaging
Merge remote-tracking branch 'origin/hq-dropdown' into autostaging
Merge remote-tracking branch 'origin/mailchimp2' into autostaging
Merge remote-tracking branch 'origin/uth' into autostaging
Merge branch 'make-preindex-fail-loudly' into autostaging
update submodule refs