Fixed type of part_of and derived_from properties from array's to single values.
Pass at fixing display issues.
Fixed upgrade script.
Added missing fixture tag.
Fixed error in uuid reference.
Pass at updating visualization.
Merge branch 'master' into biosample_relationships-575
Fixed html page template.
Updated upgrade script to deal with empty arrays.
Merge remote-tracking branch 'origin/biosample_relationships-575' into 1326-biosample-ui
Inital pass at modifying Biosample UI to fix display of derived_from and part_of.
Corrected derived_from and part_of URL in biosample display.
Merge branch 'master' into 1326-biosample-ui

Conflicts:
	src/encoded/tests/test_upgrade_biosample.py
	src/encoded/upgrade/biosample.py
Merge pull request #198 from ENCODE-DCC/1326-biosample-ui

Biosample relationships UI #1326