Upgrade to Qt 4.8.3 (because 4.8.2 was removed from qt repos?)

contrib/gitian-descriptors/gitian-win32.yml

@@ -12,17 +12,17 @@ packages:
 - "faketime"
 reference_datetime: "2011-01-30 00:00:00"
 remotes:
-- "url": "https://github.com/bitcoin/bitcoin.git"
+- "url": "https://github.com/TheBlueMatt/bitcoin.git"
   "dir": "bitcoin"
 files:
-- "qt-win32-4.8.2-gitian-r1.zip"
+- "qt-win32-4.8.3-gitian-r1.zip"
 - "boost-win32-1.50.0-gitian2.zip"
 - "bitcoin-deps-0.0.5.zip"
 script: |
   #
   mkdir $HOME/qt
   cd $HOME/qt
-  unzip ../build/qt-win32-4.8.2-gitian-r1.zip
+  unzip ../build/qt-win32-4.8.3-gitian-r1.zip
   cd $HOME/build/
   export PATH=$PATH:$HOME/qt/bin/
   #