fixed bug: added in extra download of sdss images to catch the images that aren't downloaded due to timeouts
Merge remote-tracking branch 'origin/dev'
fixed bug: manually updated skymapper images and urls after SMT > SKY name changes on skymapper webpages
Merge remote-tracking branch 'origin/dev'

Conflicts:
	pessto_marshall_engine/webapp/marshall/tickets/single_ticket/ticket_building_blocks/identity_block.py
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