nits
Added basic watchdog server
Command-line tool for simulating a scanned barcode event
SQLite schema is slightly different from the Postgres schema. Add some logic in models.py to handle this based on the environment
Fix devel server rpc shutdown
Barcode rpc call ignores first character
Cleanup in devel_server; Added vdb_serve to deve surver; Added mock_vend_server for use by vdb_serve; Added vend.py command line tool for simulating vending events
Removed old db management scripts
Added support for bill scanner; renamed scan_barcode.py to barcode.py; fixed help messages for command line tools
nit
nit
fixed nits in usage message
Fixed stubborn thread not dying on shutdown