Add image support through aws s3 for media_objects
Allow addition and creation of steps from project edit page
Show add new project link only for signed in users
Allow adding of images from project edit page
Give a more descriptive name to helper method
Merge branch 'homepage' into heroku_master

Conflicts:
	.gitignore
	Gemfile
Don't look for application.yml in production
Add heroku gem for rails 4 support
Update Gemfile.lock