Merge pull request #274 from Nurhashimah/master

#485-user roles - minor fixes
appraisal_form
Merge pull request #275 from irshad89/master

appraisal_form
Merge pull request #276 from Nurhashimah/master

#467 - Travel Request (travel log - validation & error msg fixed/added) ...
#486 Added Staff authorisation and filter to main menu
remove dump file
#490 Asset Defect Notofications
#490 Asset Defect Notifications filter with authorisation
Student Discipline - Edit(+Actiontaken, Referbpl) added