Labgym

1. Made the time points in the output time-series sheets more precise.
2. Fixed an error when using the option of 'load background image'.

1. Improved background subtraction and the tracking is more accurate.
2. Now LabGym not only can work for videos with illumination transitions from dark to bright, but can also work for those from bright to dark.

1. Now LabGym can also be used in categorizing binary behaviors (yes or no behavior, or behaviors with only 2 categories)
2. Fixed a bug that caused a path error if users did not select any behavior parameters for quantification.
3. Now users have an option to choose whether to relink newly detected animals to deregistered IDs.

1. Changed a typo in setup.

Initial release.