* Added RiskModel class hierarchy * Modified API for MomentumSignal and SMASignal to utilise inherited Signal object * Added SignalsCollection entity to update data for derived Signal classes * Removed unnecessary BufferAlphaModel * Added some unit tests to improve test coverage slightly
0.1.1
* Removed the need to specify a CSV data directory as an environment variable by adding a default of the current working directory of the executed script * Addes CI support for Python 3.5, 3.6 and 3.8 in addition to 3.7 * Added some unit tests to improve test coverage slightly