Merge pull request #65 from g2-aj/branch_kris

Added Consoles for all Clerk actions. TODO: debugging multiple windows, display borrower/book/status informations
fixed popular number show n bug
Merge branch 'master' of https://github.com/g2-aj/cs304 into branch_alshahna
Merge pull request #66 from g2-aj/branch_alshahna

Branch alshahna
latest pull from master