Merge pull request #20 from jkuk/master

Password management, pop up log in
Added ability to print before removal of student in removeStudent method. Other small changes in MaintenanceManagerGui.java.
Merge pull request #22 from KettyLezama/master

Changes in MaintenanceManagerGUI.java: removeStudentButton method
removed MaintenanceManager.form and .java
re-added MaintenanceMangerGUI.form and .java
removed saras code
re-added saras code
added massbay.png image
Yet more changes
*Asks to save changes to scenario when changin tab
*Ordered Medication Route list
*Removed add/removal headers
*Add Medication now forces a selection when clicking ok
*typo: "PLease select medication..."
Update 2
Merge pull request #24 from WannabeSid/master

Update 2
Merge pull request #23 from sadasilva/master

Yet more changes