Oolong v0.2.0

This release brings in MPI logging functionality via a secondary derived type and an abstract class.

Oolong v0.1.0

This initial release brings in the first wave of functionality, namely:

• Serial, object oriented logging functionality
• Different log levels
• Ability for a logger to treat warnings as errors
• Ability for different loggers to have unique character IDs and to have different coloured tags (when logging to the terminal)
• Basic level of unit-tests