General Maintenance Release and fixes for the following:

7865 Regression analysis was slow with big data sets (with thousands of data points)

8275 After performing some StatTools operations, workbooks closed without Excel showing the prompt to save changes

8383 Due to an Excel bug, Excel 2010 crashed when opening workbooks with some StatTools-generated graphs (scatter plots, QQ normal plots).  A work around was added to address the problem.