select.val(newValue) doesn't work in IE10 if option contents have leading/trailing spaces

[mgol]

Example:

jQuery( "<select><option> 2</option></select>" ).val( "2" ).val()

should return "2" and it doesn't in IE10.

[mgol]

This is caused by the fact that the select set valHook is reading option.value without going through the option get valHook.

[mgol]

PR: #1901