Added input validation in customer, employee and admin
Merge branch 'master' of
https://github.com/obulikarthikeyan/SafeMoneyCorp

Conflicts:
	WebContent/pages/internal/EmpManageExtTransactions.jsp
	src/edu/asu/safemoney/controller/AdminUserController.java
	src/edu/asu/safemoney/controller/ManageExternalUserController.java
	src/edu/asu/safemoney/dao/impln/ManageExternalUserAccountDAOImpl.java
	src/edu/asu/safemoney/model/UserModel.java
	src/edu/asu/safemoney/service/EmployeeUserService.java
	src/edu/asu/safemoney/service/impln/ManageExternalUserAccountServiceImpl.java