Revision 1201247

Reverts 1201229 and reapplies patch from Leon "add datetimepicker language file for zh-CN, zh-HK, zh-TW, and an en one in order to avoid "jquery-ui-timepicker-en.js" not found error" https://issues.apache.org/jira/browse/OFBIZ-4555

1. add datetimepicker language file to system: jquery-ui-timepicker-zh-CN.js, jquery-ui-timepicker-zh-HK.js and jquery-ui-timepicker-zh-TW.js.
2. also add a "jquery-ui-timepicker-en.js" file, it's the default datetimepicker language file but not exist now.
3. run service "createJsLanguageFileMapping" to update sLanguageFileMapping.java accordingly.

jleroux: the js files were wrongly encoded, UTF8-BOM solved the issue