semantic_cck 6.x-1.2

#946058 by rvilar: Adjusted the case of some user interface strings.
#920972 by Itangalo, rjay: Added the ability to apply CSS classes to field labels.
#896598 by rjay: Added code to prevent Semantic CCK settings from appearing on the basic field settings form.
#871794 by rjay, Pomliane: Modified CSS for Semantic CCK so the Label form elements show correctly in Webkit browsers.
#842806 by rjay: Made "Label element" fields required and set appropriate default values, to prevent outputting malformed HTML tags.
#827802 by rjay: Corrected an issue that was preventing striping classes from being added to field output.
#827768 by rjay: Semantic HTML settings will now be saved regardless of whether semantic output is enabled for a field.