Card #427 PV usernames, duplicate validation & specialty management
Removed legacy code
Merge branch 'develop' into feature/410-hiding-patients

Conflicts:
	patientview-parent/patientview/src/main/java/org/patientview/patientview/logon/PatientAddAction.java
Can now hide and lock patient users from Patient Edit screen, will stop them appearing in patient lists
note: need to add "accounthidden" to patientview.user table
added accounthidden tinyint(1) to user table in 29.sql (similar to account locked)
kept DELETE from 29.sql
Merge pull request #55 from PatientView/feature/410-hiding-patients

Feature/410 hiding patients