…PropertyPath and valuePropertyPaths, if available

select.reel honors the valuePropertyPath and textPropertyPath when converting a passed in contentController to <option> tags, but does not honor the reverse. If an <option> tag is present, it doesn't convert value and text values into corresponding valuePropertyPath and textPropertyPath properties on the generated objects.

This fixes that by using the valuePropertyPath ad textPropertyPath values when present and defaulting to "value" and "text" when they're not present.

Signed-off-by: Tom Ortega <tom.ortega@gmail.com>

select.reel ignores optgroup when creating objects to stash in the contentController it creates to stash the values; This results in the groups disappearing in the drop down.

This fixes that by creating introducing a groupPropertyPath property and maintaining an offset value to use when calculating selected indexes of selected options.

Signed-off-by: Tom Ortega <tom.ortega@gmail.com>

This fix is for when existing options have no 'groupLabel' nor groupPropertyPath on them.

This drops it back out of a group and back into regular option tags.

Signed-off-by: Tom Ortega <tom.ortega@gmail.com>