create blog images migration
created image feature

added the image features. updated the common helper and add_image
helper. also updated the test logo image
updated controller, model, views

updated the controller with the delete_blog_image method. updated specs
and view so that the previous feature passes
added missing translations

added an initializer to raise an error if there is a missing
translation. added missing translations where they are needed. added an
after all to delete all uploaded images. fixed a typo due to adding
missing translations
fixed a few specs

i didn't like the wording on a few specs. also missed a few for the edit controller
move delete blog_post_images into separate controller

moved the logic for deleting images into it's separate controller
rename blog_images to images. remove old code

removed old code left over from moving the delete method. renamed
blog_images to images
fixed a few spec issues

refactored the unscoped_find_by! method. removed a few instance
variables that we don't need. renamed the image fields for
added an expectation and two more integration tests
Merge pull request #33 from mixandgo/feature/upload_images

add image to blog post