gnome-terminal: clean up a bit and add/update meta attributes

* No need to set 'phases', the default works.
* Use shell globbing instead of running 'ls' in a subshell.
* Quote shell variables.
* The project has got a new homepage; the old one points users to the
  new one (or the launchpad page)
* Make it available in the channel (meta.platforms = linux)

pkgs/applications/misc/gnome_terminator/default.nix

@@ -9,23 +9,28 @@ stdenv.mkDerivation rec {
     sha256 = "1xykpx10g2zssx0ss6351ca6vmmma7zwxxhjz0fg28ps4dq88cci";
   };
   
-  buildInputs =
-    [ python pygtk vte gettext intltool makeWrapper
-    ];
-
-  phases = "unpackPhase installPhase";
+  buildInputs = [ python pygtk vte gettext intltool makeWrapper ];
 
   installPhase = ''
-    python setup.py --without-icon-cache install --prefix=$out
-    for i in $(cd $out/bin && ls); do
-        wrapProgram $out/bin/$i \
+    python setup.py --without-icon-cache install --prefix="$out"
+
+    for file in "$out"/bin/*; do
+        wrapProgram "$file" \
             --prefix PYTHONPATH : "$(toPythonPath $out):$PYTHONPATH"
     done
   '';
 
-  meta = {
-    description = "Gnome terminal emulator with support for tiling and tabs";
-    homepage = http://www.tenshu.net/p/terminator.html;
-    license = "GPLv2";
+  meta = with stdenv.lib; {
+    description = "Terminal emulator with support for tiling and tabs";
+    longDescription = ''
+      The goal of this project is to produce a useful tool for arranging
+      terminals. It is inspired by programs such as gnome-multi-term,
+      quadkonsole, etc. in that the main focus is arranging terminals in grids
+      (tabs is the most common default method, which Terminator also supports).
+    '';
+    homepage = http://gnometerminator.blogspot.no/p/introduction.html;
+    license = licenses.gpl2;
+    maintainers = [ maintainers.bjornfor ];
+    platforms = platforms.linux;
   };
 }