fully parallelize the Command builder

spec/rscons/builders/command_spec.rb

@@ -1,18 +0,0 @@
-module Rscons
-  module Builders
-    describe Command do
-
-      let(:command) { ['pandoc', '-fmarkdown', '-thtml', '-o${_TARGET}', '${_SOURCES}'] }
-      let(:env) {Environment.new}
-      subject {Command.new}
-
-      it "invokes the command to build the target" do
-        expected_cmd = ['pandoc', '-fmarkdown', '-thtml', '-ofoo.html', 'foo.md']
-        expect(subject).to receive(:standard_build).with("PANDOC foo.html", "foo.html", expected_cmd, ["foo.md"], env, :cache)
-        subject.run("foo.html", ["foo.md"], :cache, env,
-                    "CMD" => command, "CMD_DESC" => "PANDOC")
-      end
-
-    end
-  end
-end