Hosting the RailsMN documents with Pages

Rails.MN links directly to Meetup, which is okay but... we also have railsmn.github.io, but it's currently under-utilized.

![screen shot 2014-03-12 at 3 00 02 pm](https://f.cloud.github.com/assets/2077/2402340/fc5dddcc-aa20-11e3-9350-5c26f58a6631.png)

So, I spent some time putting together a new site. It's all bootstrap & jekyll, should be functional hosted by GitHub Pages, editable via GitHub, plus hackable locally. With the exception of some small tweaks to the installation guide based on Monday night's class, this is the same content as we had scattered all over before, just presented more coherently.

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#### Landing page:
![screen shot 2014-03-12 at 2 57 34 pm](https://f.cloud.github.com/assets/2077/2402371/32facb4c-aa21-11e3-9c17-3610f44a303d.png)

#### Installation guide:
![screen shot 2014-03-12 at 2 57 46 pm](https://f.cloud.github.com/assets/2077/2402377/41cf1efc-aa21-11e3-9c11-049d8dd1b0f4.png)

#### OpenCamp project:
![screen shot 2014-03-12 at 2 57 56 pm](https://f.cloud.github.com/assets/2077/2402379/47f39498-aa21-11e3-9925-d42ec31878ee.png)

#### BTW
@derekrockwell's presentation is still there, it's just not top-level content:
![screen shot 2014-03-12 at 3 04 12 pm](https://f.cloud.github.com/assets/2077/2402404/9e955e80-aa21-11e3-9181-b5fc23a68f19.png)

We should links to other presentations, if we can remember what's been presented.