Fix to am-pm detection logic

amNames contains entries in lowercase. Usually amNames[0] for i18n files.
Using .toUpperCase in one side of the equality causes lowercase names to be evaluated as PM instead.

Author: fambonomi

src/jquery-ui-timepicker-addon.js

@@ -810,7 +810,7 @@
 						second !== parseInt(this.second,10) || 
 						millisec !== parseInt(this.millisec,10) || 
 						microsec !== parseInt(this.microsec,10) || 
-						(this.ampm.length > 0 && (hour < 12) !== ($.inArray(this.ampm.toUpperCase(), this.amNames) !== -1)) || 
+						(this.ampm.length > 0 && (hour < 12) !== ($.inArray(this.ampm.toUpperCase(), this.amNames.toUpperCase()) !== -1)) || 
 						(this.timezone !== null && timezone !== this.timezone.toString()) // could be numeric or "EST" format, so use toString()
 					);