cutegram: fix meta information and parallel building

pkgs/applications/networking/instant-messengers/telegram/cutegram/default.nix

···
     telegram-qml libqtelegram-aseman-edition 
     gst_plugins_base gst_plugins_good gst_plugins_bad gst_plugins_ugly ];
   nativeBuildInputs = [ makeQtWrapper ];
-  enableParallelBuild = true;
+  enableParallelBuilding = true;
 
   configurePhase = "qmake -r PREFIX=$out";
 
···
     homepage = "http://aseman.co/en/products/cutegram/";
     license = licenses.gpl3;
     maintainers = with maintainers; [ profpatsch AndersonTorres ];
+    platforms = platforms.linux;
   };
 }
 #TODO: appindicator, for system tray plugin (by @profpatsch)

pkgs/applications/networking/instant-messengers/telegram/libqtelegram-aseman-edition/default.nix

···
   };
 
   buildInputs = [ qtbase qtmultimedia qtquick1 ];
-  enableParallelBuild = true;
+  enableParallelBuilding = true;
 
   patchPhase = ''
     substituteInPlace libqtelegram-ae.pro --replace "/libqtelegram-ae" ""
···
     version = "6.1";
     description = "A fork of libqtelegram by Aseman, using qmake";
     homepage = src.meta.homepage;
-    license = stdenv.lib.licenses.gpl3;
+    license = licenses.gpl3;
     maintainers = [ maintainers.profpatsch ];
+    platforms = platforms.linux;
   };
 
 }

pkgs/applications/networking/instant-messengers/telegram/telegram-qml/default.nix

···
   };
 
   propagatedBuildInputs = [ qtbase qtmultimedia qtquick1 libqtelegram-aseman-edition ];
-  enableParallelBuild = true;
+  enableParallelBuilding = true;
 
   patchPhase = ''
     substituteInPlace telegramqml.pro --replace "/\$\$LIB_PATH" ""
···
     version = "0.9.2";
     description = "Telegram API tools for QtQml and Qml";
     homepage = src.meta.homepage;
-    license = stdenv.lib.licenses.gpl3;
+    license = licenses.gpl3;
     maintainers = [ maintainers.profpatsch ];
+    platforms = platforms.linux;
   };
 
 }