Output the http protocol in generated nock code from the recorder

This fix outputs the http protocol as part of the generated nock code.

### The Problem

The recorder in nock does not output the URL protocol in the generated code when using 'http'. As a result, when trying to reuse the code in tests, and calling .done() on a nock-ed call, the test will fail.

For example, if we record the following call:

```javascript
  var req = http.request({
      host: "www.google.com"
    , path: '/'
    , port: 80
  }, function(res) {
     // whatever happens here
  });
```

The following code is generated by the nock recorder:

```javascript
nock('www.google.com:80')
  .get('/')
  .reply(200, "<!doctype html><html itemscope=\"itemscope\" itemtype=\"http://schema.org/WebPage\"><head><meta content=\"Search the world's information, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for.\" name=\"description\"><meta content=\"noodp\" name=\"robots\"><meta itemprop=\"image\" content=\"/images/google_favicon_128.png\"><title>Google</title><script>(function(){\nwindow.google={kEI:\"HMsEUY7iGc7kigKXlYHQCQ\",getEI:function(a){for(var b;a&&(!a.getAttribute||!(b=a.getAttribute(\"eid\")));)a=a.parentNode;return b||google.kEI},https:function(){return\"https:\"==window.location.protocol},kEXPI:\"17259,18167,39523,39977,4000116,4001569,4001959,4001975,4002001,4002378,4002436,4002523,4002562,4002700,4002858,4002928,4003035,4003053,4003104,4003215,4003225,4003316,4003318,4003335,4003340,4003387,4003437,4003510,4003518,4003654\",kCSI:{e:\"17259,18167,39523,39977,4000116,4001569,4001959,4001975,4002001,4002378,4002436,4002523,4002562,4002700,4002858,4002928,4003035,4003053,4003104,4003215,4003225,4003316,4003318,4003335,4003340,4003387,4003437,4003510,4003518,4003654\",ei:\"HMsEUY7iGc7kigKXlYHQCQ\"},authuser:0,ml:function(){},kHL:\"en\",time:function(){return(new Date).getTime()},log:function(a,\nb,c,i){var d=new Image,f=google.lc,e=google.li,g=\"\";d.onerror=d.onload=d.onabort=function(){delete 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class=gb4>Web History</a> | <a  href=\"/preferences?hl=en\" class=gb4>Settings</a> | <a target=_top id=gb_70 href=\"https://accounts.google.com/ServiceLogin?hl=en&continue=http://www.google.com/\" class=gb4>Sign in</a></nobr></div><div class=gbh style=left:0></div><div class=gbh style=right:0></div></div><iframe name=\"wgjf\" style=\"display:none\"></iframe><center><br clear=\"all\" id=\"lgpd\"><div id=\"lga\"><img alt=\"Google\" height=\"95\" src=\"/intl/en_ALL/images/srpr/logo1w.png\" width=\"275\" id=\"hplogo\" onload=\"window.lol&&lol()\" style=\"padding:28px 0 14px\"><br><br></div><form action=\"/search\" name=\"f\"><table cellpadding=\"0\" cellspacing=\"0\"><tr valign=\"top\"><td width=\"25%\">&nbsp;</td><td align=\"center\" nowrap=\"nowrap\"><input name=\"ie\" value=\"ISO-8859-1\" type=\"hidden\"><input value=\"en\" name=\"hl\" type=\"hidden\"><input name=\"source\" type=\"hidden\" value=\"hp\"><div class=\"ds\" style=\"height:32px;margin:4px 0\"><input autocomplete=\"off\" 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  expires: '-1',
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```

However, using it will fail to match, and output the following:

```sh
AssertionError: Mocks not yet satisfied:
GET google.com://80:443/
```

You can recreate this problem in the tests. In the first test of <code>test/test_intercept.js</code> change the nock line:

```
  var scope = nock('www.google.com')
```

Note the dropping of the protocol, matching the code generated by the recorder. The tests will fail after this change though!