This is a partial fix on the old bug that the code plays the gesture
super fast the first time around (after a recording or after opening a
playback file) because the playback clock is using an old timestamp as
the start point (so is hurrying to "catch up").  Now, if you use the
reset button before the first playback the playback will be at the
right speed the first time.
Forgot to commit the changes in this file necessary for the fix
discussed in last commit message.  Tested that fixes playback in a
manual recording session.  Haven't tested that fixed the issue when
first reading from a file.
This change was also necessary in gesturer.pde for the playback of
first gesture after start-up to be at correct speed.
updated.
Cleaning up and getting rid of use of wrapper Motor class usage.
a small fix