add Faker gem to production gems for use with Heroku
Added Carrier-Wave gem to upload pictures
files can now be uploaded with blog posts, not yet able to view pictures.
can now upload and view images with blog posts.
form body recognizes line breaks, due to simple_format(@post.body).  app also recognizes when a picture does not exist for a blog post, and will not try to render it.
fix links to external facebook, twitter, and mailto:myemail, so they are absolute, not relative.
merging gh pages to master