pump.io: 1.0.0 -> 3.0.0

The package stopped building for some unknown reason (npm could no
longer fetch a module).

This is one of the build failures listed in #23253.

    http://hydra.nixos.org/build/49551309
    http://hydra.nixos.org/build/49548753

Easiest fix is to upgrade to latest stable version and regenerate
packages with node2nix.

The databank-memcached dependency needed to be dropped due to
dependency failures.

pkgs/servers/web-apps/pump.io/generate.sh

@@ -15,15 +15,23 @@ set -e
 # Also jshon does funny things with slashes in strings, which can be
 # fixed with sed.
 
-curl https://raw.githubusercontent.com/e14n/pump.io/v1.0.0/package.json | \
+VERSION="3.0.0"
+URL="https://registry.npmjs.org/pump.io/-/pump.io-$VERSION.tgz"
+SHA1="ycfm7ak83xi8mgafhp9q0n6n3kzmdz16"
+
+curl https://raw.githubusercontent.com/e14n/pump.io/v$VERSION/package.json | \
     jshon -e dependencies              \
           -s '*' -i databank-mongodb   \
           -s '*' -i databank-redis     \
-          -s '*' -i databank-memcached \
           -s '*' -i databank-lrucache  \
           -p | sed 's=\\/=/=g' > full-package.json
 
 node2nix --input full-package.json --composition composition.nix --node-env ../../../development/node-packages/node-env.nix
 
 # overriding nodePackages src doesn't seem to work, so...
-sed -i 's|src = ./.|src = fetchurl { url = "https://registry.npmjs.org/pump.io/-/pump.io-1.0.0.tgz"; sha1 = "404mzdqzknrv7pl9qasksi791cc00bbd"; }|' node-packages.nix
+sed -i "s|src = ./.|src = fetchurl { url = \"$URL\"; sha1 = \"$SHA1\"; }|" node-packages.nix
+
+# fetchgit or node2nix is having problems with submodules or something.
+# This is the sha256 for connect-auth which is a npm dep hosted on
+# github and containing submodules.
+sed -i "s|d08fecbb72aff14ecb39dc310e8965ba92228f0c0def41fbde3db5ea7a1aac19|1b052xpj10hanx21286i5w0jrwxxkiwbdzpdngg9s2j1m7a9543b|" node-packages.nix