Removed extra information, adjusted fonts and minor changes

Further improved fonts, colors and alignments. I've removed the big banner at the top introducing Gopher Academy as to leave this part focused on content (ie. articles) as it should, as a blog.

I am thinking that the introduction that was there should be clear to anyone visiting and is more suited for the main site.

### New blog page

![screen shot 2014-11-15 at 7 02 21 pm](https://cloud.githubusercontent.com/assets/6686356/5058828/f47b6bdc-6cf9-11e4-93f7-bb304017c379.png)

### New article page

![screen shot 2014-11-15 at 7 03 40 pm](https://cloud.githubusercontent.com/assets/6686356/5058831/248616ec-6cfa-11e4-820e-4ad0485398d4.png)

Me and @ahsanulhaque continue to look for improvements to typography. This should still present a significant improvement to readability.