BUG: Listing of files deleted first two.

There was some confusion as to the way the dir() function works in
Matlab, so I was deleting the first two files in every directory from
the file list. This is corrected here.
ENH: Allowing for multiple sections per run.

Changed SelectRelevantTimePoints.m so that it is possible to choose
multiple time selections per run so that it is possible to cut out turns
and other undesirable parts of the run.  Changed the files that call
SelectRelevantTimePoints.m (SelectRelevantTimePointsMasterBinary and
SelectRelevantTimePointsMasterNonBinary) to take advantage of this.