2009_09_19_09_22_42.tcx
    A TCX file with "smart recording", i.e. variable recording intervals.

2009_08_30_21_17_25.tcx
    A TCX file from a Garmin 705. Includes power, altitude, and heart rate
    data. Good general case test of TCX import

2009_01_09_11_13_14.tcx
    A TCX file from a Garmin 705. Includes altitude but no power or heart
    rate. Time starts before 0, causing cpint crash.  Also a good test for
    handling missing data.

2008_12_28_08_13_27.tcx
    A TCX file with altitude values below sea level. Also has missing heart
    rate and power data.

20090806_053349_BOB_DOBILANA.CSV
    A CSV file exported from the ergomo ergoracer software. The filename
    is the default format for export from ergoracer. Includes distance,
    power, cadence, speed, heart rate, altitude, temperature, and interval
    number (all zeros in this file).

20090804_062250_BOB_DOBALINA.CSV
    A CSV file exported from the ergomo ergoracer software. The filename
    is the default format for export from ergoracer. Includes distance
    (all zeros in this file), power, cadence, speed (all zeros), heart
    rate, altitude, temperature, and interval number.  Note the interval
    numbering convention.
