Begin implementing editing profile

* Added sanitized params for updating user account with :first_name,
* :last:name, :bio
* Aded routes and UserController actions for edit, update, and show
* Created views for user#dashboard, user#edit, and user#show
* Implemented beginning tests for simple addition of first & last
* name and bio. Moving on to adding profile photo and tags next
Implement editing profile, including uploading profile image

* Added gems 'carrierwave' and 'mini_magick'
* `rails g uploader ProfileImage` generated the uploader directory and
* uploader file
* Migration for adding column profile_image to User
* Added carrierwave.en.yml to incorporate flash messages
* Implemented tests for editing profile including uploading a profile
* image
* Implemented spec for profile_image_uploader to ensure it works
* properly
Clean up the edit profile form and spec