remove date validation to allow relative date pattern
add useContentGroup option instead of guessing from start/end dates
note that functions in util/date.js are no longer referenced in the code base, but I'd like to keep them for now.
Will remove the file if they remain unused when the project is completed.
Coverage decreased (-0.2%) to 88.158% when pulling 0fbf65b5cb9f49dcc1b245b30cad2e5e63c3c110 on contentGroupFlag into 800758e959c96ff4b6ed624d419e66c84ad5789f on master.
note that functions in
util/date.js
are no longer referenced in the code base, but I'd like to keep them for now. Will remove the file if they remain unused when the project is completed.