Added a save to database functionality to the register form.

This commit adds a bunch of code to allow the register form
to write to the database.

This is accomplished using the Hibernate ORM to map the
Student bean to a database. The pom.xml file was also
modified to add the needed JDBC driver in order to
communicate with a MySQL database. This should be easily
swappable to most databases with a JDBC driver with a
few changes in the hibernate.cfg.xml file.