initialize rails framework, add gems and SongsController

Here's the first merge. You can approve it without having to worry - as it states, there are only additions, no changes. Your files were simply moved (renamed) into different folders. 

The main things to note:
- app/assets/stylesheets/application.css contains all your css. I couldn't tell which parts were important so I just threw them all together (that's what happens in the end anyways) and separated them with "-------" lines (which will have to be deleted). You'll have to go through and DRY it out. 
- it's best if everything is scss friendly. Sass will make everything easier for you in the long run anyways, but it's also relevant here because I found that changing the extension to css.scss broke the app. 
- The sidebar is broken. Like, a lot. I disabled it, though the login sidebar is still available as a partial under app/views/layouts. Part of the reason for this may be that I took it out of the main page text (it can't really be in there unless we only wanted to put it on a single page). It's not a big deal right at the moment, though, since I'm not adding user log-in at the moment. That won't be going up until after I've made uploads, users, and playlists most likely.