Make models for Report and polymorphic join ReportItems
Add link to new report in the navbar
Build many-to-many association between report items and reports
WeighIns and DailyEntries generate ReportItems
User has_one report
Print unstyled reports to page
Updated reports with appropriate flash errors and notices
Lots of styling and image swaps
More styling and tweaking on forms
Remove unnecessary if/else statements from flashes