generated comment model and controller, wrote in associations with user and geomarker, made nested route with geomarker
added form to geomarker show for adding new comments, fixed geomarker_id column name in comment db
added back end for creation of comments on geomarkers
caused successful js create of geomarker to trigger click of newmarker button
changed name of comment column to content
styled comment error messages
added form validation for comments, and smoothed out the creation interaction
added delete functionality to geomarker comments