This reverts commit 59fedf92.

This reverts merge request !19

[frontend/backend] coded functionality into buttons for viewing Transactions based on filtered elements

[dao backend] modified TransactionDAO.java to include SQL for roles; displayed all necessary transaction data to viewTransactionLogs.jsp; created necessary bean and loader to support roles

[backend] Updated flu epidemic method to check if epidemic is occuring during the two weeks preceding the specified date

Updated isFluEpidemic method to check if epidemic is occurring in region for the two weeks preceding the provided date.

returning PatientBean.java to original form with no code smells and pushing code refactoring to a seperate branch

Three code smells identified and fixed. 1- multiple occurrences of the same string literal "MM/dd/yyyy". 2- ageInMs calculation longer than 100 lines. 3- age conversion uses multiple magic numbers.