[#384,sclickgrid][s] add field validator bind to field.format
[#384,slickgrid][s]add validator function to validate input
[#384, slickgrid][s]: slickgrid add support for row-delete
[#384, slickgrid][s]: slickgrid add support for row-add
[#384, slickgrid][s]: slickgrid add support for row-add and row-delete
[#384, slickgrid][s]: slickgrid add support for row-add and row-delete
Merge pull request #385 from aliounedia/master

[#384] add validator  to validate user input.