Correct source package errors

There was a stray ucamwebauth in the Changelog, which made building a
source package fail. Additionally, I added myself to Uploaders.

debian/changelog

+django-ucamlookup (1.2) unstable; urgency=low
+
+  * Correct package name in changelog
+  * Add myself to Uploaders
+
+ -- Matthew Vernon <mcv21@cam.ac.uk>  Fri, 06 Mar 2015 17:15:35 +0000
+
 django-ucamwebauth (1.1) unstable; urgency=low
 
   * New upstream release (updated to 1.1)

debian/control

 Source: django-ucamlookup
 Maintainer: UIS Information Systems Group, University of Cambridge <information-systems@ucs.cam.ac.uk>
-Uploaders: Abraham Martin <amc203@cam.ac.uk>
+Uploaders: Abraham Martin <amc203@cam.ac.uk>,
+	   Matthew Vernon <mcv21@cam.ac.uk>
 Section: python
 Priority: optional
 Build-Depends: python-setuptools, python-all (>= 2.6.6-3), debhelper (>=9),