Refactored tests in light of change from WithinFragmentComethylationMTuple class with the MTuple class and associated changes to methods.
Still need to run test data using the new version, run benchmarks using larger datasets comparing to v1.0, add changes to README.md before bumping the version number to v1.1 and releasing.
Merge commit '6d78b0e3d340730be20c927e9bb6526e50ff70af' into improve_memory_usage
Should now pass all tests