KAZOO-2129: First draft; Store transaction in modb
KAZOO-2129: Change name from kazoo_mod to kazoo_modb
KAZOO-2129: Rollup transaction when missing from MODB
KAZOO-2131: Update crossbar for transaction im modb
KAZOO-2129: Specs
Merge pull request #250 from 2600hz/KAZOO-2129

KAZOO-2129: First draft; Store transaction in modb