Merge branch 'add-fixture-helpers' into add-photo-model-and-uploader

* add-fixture-helpers:
  Add fixture helpers.
Rename PhotoStore#directory to #folder.
Add exifr gem.
Add exif docs.
Change to mini_exiftool gem.
Update exif docs.
Add photo uploader.
Merge branch 'master' into add-photo-model-and-uploader

* master:
  Add storage setup documentation.
  Add .ruby-version file.
  use ruby 2.0.0
Add spec for uploading a tiff.
Merge pull request #7 from fotoapp/add-photo-model-and-uploader

Add photo uploader