Allow tags to be send by URL instead of HTTP header

[viggeh]

This is a pull request for a temporary fix for this issue https://github.com/nodejitsu/node-loggly/issues/35

It allows the selection of sending tags as part of the URI instead of the HTTP header X-LOGGLY-TAG. To use the URI option, do:

    var loggly = require('loggly');

    var client = loggly.createClient({
      token: "your-really-long-input-token",
      subdomain: "your-subdomain",
      auth: {
        username: "your-username",
        password: "your-password"
      },
      useTagHeader: false
    });

If the option is not set, the client will behave as it would normally.

[christiaanwesterbeek]

Thanks. This seems like a clean way to work around the original problem using configuration.

[smebberson]

Any chance this change can be published via npm?

[jcrugzz]

LGTM.

[jcrugzz]

@smebberson done :)

[smebberson]

Awesome! Thank you. It's great to see some response on the nodejitsu stuff. So many great libraries that you guys have.