Convert value returned from UI to string before storing it in DB.
Convert value returned from UI to string before storing it in DB.

This should allow for differences in how database engine store booleans.
0x97/PowerDNS-Admin,CaptainQwark/PowerDNS-Admin,0x97/PowerDNS-Admin,ivanfilippov/PowerDNS-Admin,CaptainQwark/PowerDNS-Admin,ivanfilippov/PowerDNS-Admin,ivanfilippov/PowerDNS-Admin,ivanfilippov/PowerDNS-Admin,0x97/PowerDNS-Admin,0x97/PowerDNS-Admin,CaptainQwark/PowerDNS-Admin,CaptainQwark/PowerDNS-Admin