Make xforms accept patient uuid

When uploading forms to http://server:8080/openmrs/module/xforms/xformDataUpload.form?uname=name&pw=password
in addition to patient IDs accept patient UUIDs. Patient UUID can be specified as a request parameter and/or in form's xml.

Please see XformDataUploadServlet. You need to try to find patientId by id first and if it is not a number or it is not found, search for a patient by uuid and replace uuid with an id in form's xml.