ui tweaks and text updates

HI Ben,

Here's the updated branch.

Overall the changes are to make it a bit more serious and less 'bubbly' as we've found from some recent cust dev experiments that the people we want are looking for serious tech focused things. I think it's worked out pretty well (although again a ton of effort). Could you check spelling and if happy merge in and I will ask the guys to add events tomorrow and then we should be good to go live.

layout:
Resize of the carousel so that some text is visible below on laptops for more sensible UX
Resize of logo to mirror other material
login removed from nav bar as only we are going to use it, it doesn't seem to be linked in to event attendance etc so just looks strange for everyone else

Front page
Complete rewrite and format. Ideally the right panel will be featured events but I couldn't work out how to get that to work having got used to using rails as an API with angular!

Events
index page: formatting for better UX
show page: formatting. I've commented out the picture for now as there was some issues

Venture challenge
Complete rewrite and format

Forum and blog are now contained within the site, I know everyone hates iframes but from a UX perspective it is much better, it was a very odd experience to go off site with no or different branding for 2/5 of the menu items. The blog has an image header issue which I will fix tomorrow.

When there's time I would like to put the main page in to the admin system, it's a bit crazy to have to edit the code every time we want to update that.

FYI I've got a feeling the settings file that we discussed might have been included, I assumed it was on ignore but thought I saw it add on the commit.