Add version attribute where maintainers |= nckx

This will probably be mandatory soon, and is a step in the right
direction. Removes the deprecated meta.version, and move some meta
sections to the end of the file where I should have put them in
the first place.

pkgs/applications/audio/fmit/default.nix

@@ -7,9 +7,9 @@ assert alsaSupport -> alsaLib != null;
 assert jackSupport -> libjack2 != null;
 assert portaudioSupport -> portaudio != null;
 
-let version = "1.0.8"; in
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   name = "fmit-${version}";
+  version = "1.0.8";
 
   src = fetchFromGitHub {
     sha256 = "04s7xcgmi5g58lirr48vf203n1jwdxf981x1p6ysbax24qwhs2kd";
@@ -37,7 +37,6 @@ stdenv.mkDerivation {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    inherit version;
     description = "Free Musical Instrument Tuner";
     longDescription = ''
       FMIT is a graphical utility for tuning musical instruments, with error