Remove null flag validation from additional fields in donation form (See #61, #62, #69, #70)

Hemoglobin Count
Pulse
Blood Pressure
Donor Weight
fixed issue#60[Ensure 56 day block between collections is enforced, with admin option to override T:27h00]
Enhancement 'Improve Admin UI to manage Users' T:12h00
Manage Role Functionality.Insert , populate and update functionality for Role and permission_role_#117 T30h:00
Add Test Folder to Directory and Include Plugins in pom.xml (See #114)
Add Sample Unit Test (See #114)
Merge pull request #126 from jembi/add_test_plugins_and_folders_#114

Add test plugins, (temporary) test directory, and sample test case (See #114)
Merge branch 'develop' of https://github.com/jembi/bsis into Improve_Admin_UI_to_manage_Users_#118
Create JUnit Tests for #118 T:10h00
test/controller/UserControllerTest.java
Enhancement 'Improve Admin UI to manage Users'  T:13h00
Create JUnit Tests for #118 T:23h00
Merge branch 'develop' of https://github.com/jembi/bsis into Add_Admin_UI_to_configure_Roles_#117
test case for add role and update role for #117 T12h:00
condition in persist method to resolved error while calling method from test case#117 T0h:30
Donor sequence increment issue for unsuccessful saves is resolved (see #16) T: 1h30
Added a new Method for validating sequence numbers without updating tables
Added a new Method for validating sequence numbers without updating tables
Added a new Method for validating sequence numbers without updating tables
Added a new Method for validating sequence numbers without updating tables