Added carrierwave support
Add fog support
Generate RecipeDocumentUploader class
Add and mount uploader to 'document' on Recipes model
Configure carrierwave to use fog and s3
Move AWS region and S3 bucket to environment variables
Validate presence of ingredients_text and instructions only if document not present
Stub out OCR parsing on Recipe
Use current master branch of carrierwave to default to non-ssl S3 urls
Add ability to upload Recipe documents via form/RecipeController