Drop Qt version number from package description.

debian/control

@@ -78,13 +78,13 @@ Build-Profiles: <!stage1>
 Pre-Depends: dpkg (>= 1.17.5~)
 Depends: cmake (= ${binary:Version}), ${misc:Depends}, ${shlibs:Depends}
 Provides: cmake-gui
-Description: Qt4 based user interface for CMake (cmake-gui)
+Description: Qt based user interface for CMake (cmake-gui)
  CMake is used to control the software compilation process using simple
  platform and compiler independent configuration files. CMake generates native
  makefiles and workspaces that can be used in the compiler environment of your
  choice.
  .
- This package provides the CMake Qt4 based GUI. Project configuration
+ This package provides the CMake Qt based GUI. Project configuration
  settings may be specified interactively. Brief instructions are provided at
  the bottom of the window when the program is running. The main executable
  file for this GUI is "cmake-gui".