Fixing errors with rails server. See https://damssupport.bodleian.ox.ac.uk/trac/oraui/ticket/930
Fixed errors. See https://damssupport.bodleian.ox.ac.uk/trac/oraui/ticket/930 and https://damssupport.bodleian.ox.ac.uk/trac/oraui/ticket/931
working on article data type