Handle schema search with empty query dict
Handle schema search with empty query dict

The search_schema method now correctly handles an empty query dict.

Fixes #142

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