renamed files to data, as we can pass filenames or readers
added test for passing in a reader
added simple Makefile for aliasing common build tasks
added ability to output debug info (aka data, thresholds, baseline at every point) in the event database during event finding
added a variance filter parameter, separate from the baseline filter parameter
changed default variance filter param to 0.99
dont delete the file if we are debugging
fixed get_next block for data_file_reader. Save stuff on debug in event_finder