Bump master version to 4.6.0-SNAPSHOT after branching 4.5.0-SNAPSHOT
Add database upgrade from 4.5.0 to 4.6.0
Fix a bug that prevented me from starting CS.

No idea why this error suddenly pops up, this is old (but wrong) code.
CLOUDSTACK-7765: Field Validations Missing for VPC IP Address Fields
CLOUDSTACK-7766: Field Validations Missing for Ingress and Egress Rules