Removing unused imports
Minor refactoring of return values to avoid redundant if blocks
Minor idiomatic cleanup:
- Call super().__init__() in Thread subclass
- Use context manager to close out file when dumping anomalous metrics
- Use identity comparison for None
- Simplified unpacker -> timeseries fixup
Bugfix: missed a trailing :
Call super() in Thread/Process subclasses in src/horizon/
Removing unused imports from src/horizon/*
Merge pull request #8 from oxtopus/additional_cleanup

Additional cleanup