Added not shown fields

Change-Id: Ica2a68c31961848c72199154878900ea97f87653
Merge branch 'master' of git://github.com/ManilaADM/medicine-inventory.git
Story S-01004 - Create Transaction for Employees - UI + UI Validation
Story S-01020 - Create Transaction for Employees - Save Error Path
* modified option loop to equal with maximum quantity 
* add error message keys in configuration 
* added other back end validations and some querying
* catch generic exception to have generic error message
Fix order display of error message

Change-Id: Iecce2339e73ea151ce5deca303710ffebac5546c
S-01005: Return Med Sup>
-finished confirmation pop-up
-finished transaction med sup return flag update
-finished error message box for failed return
-merged conflicts with commits frm Bri and Sig