Development web server rake task

`rake dev` to start a development web server using spec/dummy

```console
$ rake dev
INFO  WEBrick 1.3.1
INFO  ruby 2.1.3
INFO  WEBrick::HTTPServer#start: pid=65828 port=9292
```
Looks like this needs rebasing before this will let me merge. Let me know
when that's set and I'll merge it

On Wed, Oct 29, 2014 at 7:21 PM, Gleb Mazovetskiy <notifications@github.com>
wrote:

> In Rakefile:
>
> > @@ -29,3 +29,18 @@ RSpec::Core::RakeTask.new(:spec)
> >  task default: :spec
> >
> >  Bundler::GemHelper.install_tasks
> > +
> > +desc 'Start development web server'
> > +task :dev do
> > +  host = 'localhost'
> > +  port = 9292
>
> Fixed
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/jayroh/thredded/pull/31/files#r19579688>.
>