Update TagField.js so tags with spaces can be added

The separator is hard coded as space or comma.  Not much is lost if you just delete the space separator option.  This allows people to add eg "Web Developer" as a job title tag.

js/TagField.js

@@ -37,7 +37,7 @@
 
 				var options = {
 					'tags': true,
-					'tokenSeparators': [',', ' ']
+					'tokenSeparators': [',']
 				};
 
 				if ($select.attr('data-ss-tag-field-suggest-url')) {