Added `Args` containers (which can be accessed through `callmonitor.DB.get_args`) -- `Args` let you access variables by name (regardless of whether they are `args`, `kwargs`, or defaults).
0.3.0
This is a major re-write, anticipating several features for wider use at scale: 1. Multi-threading compatibility 2. Custom data handlers provided by user extensions 3. A new data base model -- enabling future features such as accumulators to limit number of small files.