DB duplicate error handling
DB duplicate error handling

Catch "duplicate" errors from the database and wrap them in our own
Error type.

bbaja42/NIPAP,ettrig/NIPAP,plajjan/NIPAP,fredsod/NIPAP,ettrig/NIPAP,fredsod/NIPAP,garberg/NIPAP,bbaja42/NIPAP,fredsod/NIPAP,plajjan/NIPAP,bbaja42/NIPAP,SpriteLink/NIPAP,SpriteLink/NIPAP,garberg/NIPAP,bbaja42/NIPAP,bbaja42/NIPAP,SoundGoof/NIPAP,bbaja42/NIPAP,plajjan/NIPAP,ettrig/NIPAP,garberg/NIPAP,SoundGoof/NIPAP,fredsod/NIPAP,SoundGoof/NIPAP,ettrig/NIPAP,SpriteLink/NIPAP,fredsod/NIPAP,SpriteLink/NIPAP,plajjan/NIPAP,fredsod/NIPAP,SpriteLink/NIPAP,SoundGoof/NIPAP,SoundGoof/NIPAP,SoundGoof/NIPAP,SpriteLink/NIPAP,garberg/NIPAP,garberg/NIPAP,plajjan/NIPAP,ettrig/NIPAP,garberg/NIPAP,ettrig/NIPAP,plajjan/NIPAP