Hide EBI button for all but admin
add admin check to EBI submission
fix test for share change
update error message
HOLD was not being generated as an ACTION
Merge pull request #491 from adamrp/ebi_hold_action

URGENT: HOLD was not being generated as an ACTION
fix wrongly changed test
Merge pull request #485 from squirrelo/hide-ebi-button

Hide EBI button for all but admin