#1314306 by Hanno: Don't translate html-tags, because translators might get confused and the user should really see the original tag all the time.

#1302494 by defr: Don't alter the value_options directly for flatten the options in in_operator filter

#1261468 by dereine: Fix notices when relationship label is not defined and strict error on views_handler_field_accesslog_path

#1215602 by derhasi: Provide a views_get_views_as_options which allows to list all views availible for form elements

This reverts commit ee7707a3.

#1207680 by damz: Don't validate if there are no options set, the values are empty and required is not set