Mostly whitespace, cleaned up home.html.erb

Changes:  
- Added whitespace to various files
- Deleted extraneous `<body>...</body>` tags from `home.html.erb`
- Added a missing div in

Take a look at the changes and if you're good with them, merge them in or feel free to ignore them if they cause merge conflicts. This pull request is an example of how collaborative coding is done, however. Someone submits a merge request and their commits get merged into the main repository. Everyone updates from there. 

Brain is fried right now, let me know if you have specific questions.