Adding populate_library_tables
Added populate_library_tables and modified dropLibTables.sql
updated populate_library_tables
Created new class for borrower transactions. Renamed borrower table class to BorrowerAndType.
Merge branch 'master' of https://github.com/g2-aj/cs304 into g3-ks
Merge pull request #19 from g2-aj/g3-ks

G3 ks
fixed checkout items in finding an available copy, and added dearch by keyword functions in Borrower.java
Merge pull request #20 from g2-aj/branch_alshahna

fixed checkout items in finding an available copy, and added dearch by k...
updated sql files by Kris
Merge branch 'master' of https://github.com/g2-aj/cs304 into branch_alshahna
Merge pull request #21 from g2-aj/branch_alshahna

Branch alshahna
fixed populating test tables for lib branch
Merge pull request #22 from g2-aj/branch_alshahna

fixed populating test tables for lib branch
working on checking the borrower account info
Merge pull request #23 from g2-aj/branch_alshahna

working on checking the borrower account info
Merge branch 'master' of https://github.com/g2-aj/cs304 into branch_kris

Conflicts:
	populate_library_tables.sql
fixed conflicts in populate_library_tables.sql
Merge pull request #24 from g2-aj/branch_kris

Fixed date on insertBook() and showBook().
Merge pull request #25 from g2-aj/branch_lin

Branch lin
Merge branch 'master' into branch_lin