Added Rake task to run tests with PhantomJS

Rakefile

@@ -0,0 +1,39 @@
+%w| ansi/core popen4 |.each do |lib|
+  begin
+    require lib
+  rescue LoadError => e
+    gem_name = lib.split('/').first
+    puts "[!] Required Rubygem '#{gem_name}' not found, install with:",
+         "    gem install #{gem_name}", ""
+    exit(1)
+  end
+end
+
+desc "Run tests with phantomjs"
+task :test do |t, args|
+  unless system("which phantomjs > /dev/null 2>&1")
+    puts ANSI.red("[!] PhantomJS is not installed, aborting... See <http://phantomjs.org>")
+    exit(1)
+  end
+
+  system "curl -s -X DELETE 'http://localhost:9200/people-test' > /dev/null"
+
+  cmd = "phantomjs tests/run-qunit.js '#{File.dirname(__FILE__)}/tests/index.html'"
+  # puts cmd
+
+  result = ''
+
+  status = POpen4::popen4(cmd) do |stdout, stderr, stdin, pid|
+    while line = stdout.gets
+      if line =~ /Time:/
+        result = line.chomp
+      else
+        puts line
+      end
+    end
+  end
+
+  color = status.success? ? :green : :red
+  puts ['='*80, result, '-'*80].join("\n").ansi( color )
+  exit(status.exitstatus)
+end