added heroku bits
gemfile.lock needed by heroku
added rdiscount for markdown
apparently a thing heroku needs ref: http://markcampbell.me/jekyll/heroku/2013/05/18/how-to-set-up-jekyll-on-heroku.html
adding svgs
enabled jpg
Merge branch 'gh-pages' of github.com:lifechurch/lifechurch-site into gh-pages