working on pre-art cohort layout integration with current cohort
adding pre-art report view in bart2
adding methods for pulling pre-art report data
added pre-art to the reports list
added 'pre_art' method for the pre-art report
specified form actions between cohort report and pre-art report
working on art visit summary 'seen_by' method
Merge branch 'master' of github.com:BaobabHealthTrust/bart2