Add neon-0.29.x, make it default

Also stop using "default" neon in all-packages.nix.
Minor versions are not source-compatible, so a package should state needed version explicitly.

svn path=/nixpkgs/trunk/; revision=21394

pkgs/development/libraries/neon/0.29.nix

@@ -0,0 +1,37 @@
+{ stdenv, fetchurl, libxml2, pkgconfig
+, compressionSupport ? true, zlib ? null
+, sslSupport ? true, openssl ? null
+, static ? false
+, shared ? true
+}:
+
+assert compressionSupport -> zlib != null;
+assert sslSupport -> openssl != null;
+assert static || shared;
+
+stdenv.mkDerivation rec {
+  name = "neon-0.29.3";
+
+  src = fetchurl {
+    url = "http://www.webdav.org/neon/${name}.tar.gz";
+    sha256 = "1d1c6zhr00yvg0fbhpkq8kmsq9cchr112ii9rl39gdybyflh9444";
+  };
+
+  buildInputs = [libxml2 pkgconfig openssl]
+    ++ stdenv.lib.optional compressionSupport zlib;
+
+  configureFlags = ''
+    ${if shared then "--enable-shared" else "--disable-shared"}
+    ${if static then "--enable-static" else "--disable-static"}
+    ${if compressionSupport then "--with-zlib" else "--without-zlib"}
+    ${if sslSupport then "--with-ssl" else "--without-ssl"}
+    --enable-shared
+  '';
+
+  passthru = {inherit compressionSupport sslSupport;};
+
+  meta = {
+    description = "An HTTP and WebDAV client library";
+    homepage = http://www.webdav.org/neon/;
+  };
+}