updated the status in BookCopy for the borrwed book
edited inertBorrowing to take in bid
processing a return in progress, still need to process fine and hold request within this transaction
Merge pull request #13 from g2-aj/branch_alshahna

process return transaction ... in progress
completed process return transaction in clerk.java -- still needs to be tested
Merge pull request #14 from g2-aj/branch_alshahna

completed process return transaction in clerk.java -- still needs to be ...
added DateHelper class to calculate Date class, and updated the processReturn function to use this
Merge pull request #15 from g2-aj/branch_alshahna

added DateHelper class to calculate Date class, and updated the processR...
Merge branch 'master' into branch_lin
Finished first half of generate report function