Added accessdenied.xhtml. Enhance security by not allowing another
logged in user to access the last viewed page of last logged out user.
Added access right check at top of the page to avoid users without
access right but knowing the URL to be able to access the page.
Merge branch 'sprint1' of https://github.com/kinmengBGM/bgm-hrm into
sprint1

Conflicts:
	leaveapp/web/src/main/java/com/beans/leaveapp/web/bean/AuthenticationBean.java
	leaveapp/web/src/main/webapp/protected/accessRights.xhtml
	leaveapp/web/src/main/webapp/protected/applyleave/employeeleaveform.xhtml
	leaveapp/web/src/main/webapp/protected/employeeGrade.xhtml
	leaveapp/web/src/main/webapp/protected/employeeType.xhtml
	leaveapp/web/src/main/webapp/protected/employeeprofile/employeeprofilemgmt.xhtml
	leaveapp/web/src/main/webapp/protected/employeeprofile/myprofile.xhtml
	leaveapp/web/src/main/webapp/protected/leavetypemgmt.xhtml
	leaveapp/web/src/main/webapp/protected/role.xhtml
	leaveapp/web/src/main/webapp/protected/roletoaccessrightsmapping.xhtml
	leaveapp/web/src/main/webapp/protected/systemAuditTrail.xhtml
	leaveapp/web/src/main/webapp/protected/usertoaccessrightsmapping.xhtml
	leaveapp/web/src/main/webapp/protected/usertorole.xhtml
	leaveapp/web/src/main/webapp/protected/usertorolemapping.xhtml