fix events, fix for multiple grid configurations NOTE: there is a bug
with column selection and refresh, refresh is clearing the columns
selection, this is unrelated to my changes

grid column reorder: fix z-index problem, fix event cancellation

augment placement logic for grid with line-numbers

fix events, fix for multiple grid configurations NOTE: there is a bug with column selection and refresh, refresh is clearing the columns selection, this is unrelated to my changes
Merge pull request #368 from mikeromano38/master

fix events, fix for multiple grid configurations NOTE: there is a bug