Added a couple of checks in ClerkUser and BorrowerUser.  Added several
assumptions in user_manual.
Merge branch 'fromRemoteGUI' into guipart

Conflicts (resolved):
	Project Part III/src/users/BorrowerUser.java
Merge branch 'fromRemoteGUI' into guipart
Merge branch 'guipart' of https://github.com/nokswalk/CPSC304CoolTeam.git into guipart