[v2.1.0]
- SearchPath mechanism now allows input data to be organized into directories, each containing data for a group of points.
- Now you can include data that are not complete, for example a group of points that only has one energy and gradients, or without coupling data.  The program will keep track which piece of data is not available.
- gradient ordering, g-h orthogonalization are now also aware if absence of data and will make their judgement only on data that exist.
- Removed deprecated subroutines makeXCoords and