Fix bug in text field automatic capitalization attribute
Fix values of text field autocorrect and autocapitalize

According to:

https://developer.apple.com/library/safari/#documentation/AppleApplications/Reference/SafariHTMLRef/Articles/Attributes.html

The new values for 'autocorrect' are "off" and "on", and the values for
'autocapitalize' are "none" and "sentences".
Use 'SC.none' to test TextFieldView properties
Fix capitalization of input field attributes