Fix windows building.

windows/config.ini.default

@@ -13,7 +13,7 @@ portableinstaller = %(progfiles)s\PortableApps.comInstaller\PortableApps.comInst
 branch = %(projects)s\trunk
 documentation = %(projects)s\documentation
 win32icon = %(here)s\OpenLP.ico
-hooks = %(here)s
+hooks = %(here)s\..\pyinstaller-hooks
 portable = %(projects)s\OpenLPPortable
 
 [transifex]

windows/windows-builder.py

@@ -319,6 +319,8 @@ class WindowsBuilder(object):
             u'--windowed',
             u'--noupx',
             u'--additional-hooks-dir', self.hooks_path,
+            u'--runtime-hook', os.path.join(self.hooks_path,
+                'rthook_openlp_pyqt4.py'),
             u'--log-level=ERROR',
             u'-o', self.branch_path,
             u'-i', self.win32_icon,