Fixes an issue pressing backspace in unsupported fields (#63)
Added autotab method to refresh the tabbing order of elements

Updated demo to support removing examples in order to showcase the new refresh feature
Added support for readonly fields
Added support for specifying the filter format through class names
Added demos for Knockout and Angular
Fixed several issues with handling a pasted value that contained capital letters (#41, #65)
Fixed an issue that caused disabled/readonly fields to be altered when pasting