Enhancement - Handle a blank city when "My Inventory" is choosen, when generating a cert.

Enhancement - more detailed messages if a cert fails to generate

Enhancement - prevent invalid characters in assetnumbers, so we don't get file save/access issues.

Enhancement - Added validation for client specific mandatory attributes. (allows mandatory attributes for shared categories)

Enhancement - new module "REQUIREANSWERFORALLOPSTASKS" that enforces TEXT50/TEXT250 tasktypes also be entered.