use NSNumber.numberWithInt_ to create a formatter
A number of patches

(This is the fontInfoView used in RoboFont)
* Use a custom NumberEditText for validating input
* some UI changes
* the EmbeddedControl should check if the popup index is zero
* adding check for intToBool (used in forceBold and fixedPitch)
* adding check for emptyToNone (used in sample text and description
* adding check for postscriptWindowsCharacterSet
* adding support for place holders, if use default is switched on
UI tweaks to fully show the progressbar (from 10.7 this is an issue)
improvements on the glyphCellView

* better support for selecting cells
* better support for extending an existing selection
* better support for drag and drop with drags on top or inbetween cells