Allow setting options for DatePicker in the Date Editor.

Adding the 'datePickerOptions' key to the column definition object
will override the default options sent to the jQuery DatePicker.
custom row html support
getRowFromEvent method added to grid
rowselection notification augmented
remotemodel replacement
ko get/set; refval formatter; SelectCellEditor
dynamic cssClasses for rows
useCellTooltip option on columndefinitions for cell tooltips
merge
extending formatters and remotemodel
persist grid state
updating plugins + remotemodel
preloader, selectiontracker, formatters mod, remotemodel mod
cell editing on F2, too
validationtooltips plugin
hack: autosizer plugin
playing with column headers
Merge branch 'master' of https://github.com/aholik/SlickGrid
preloader changes
merging upstream
preloader