Fixed flex - single criteria rubrics
Fixed flex - single criteria rubrics

Renamed long and boolean since they are reserved JavaScript keywords

Single line rubrics were not properly getting rejected by the block check and getting passed on to the flex check. This meant that single line rubrics in the flex form were not getting detected
https://community.canvaslms.com/docs/DOC-8844-importing-rubrics-from-a-spreadsheet#comment-84507
jamesjonesmath/canvancement,mfishtrom/seqcanvas,jamesjonesmath/canvancement,mfishtrom/seqcanvas,jamesjonesmath/canvancement,mfishtrom/seqcanvas,jamesjonesmath/canvancement,jamesjonesmath/canvancement,mfishtrom/seqcanvas,mfishtrom/seqcanvas