ActiveStorage

Talks about the new library coming to Rails 5.2

Links:

- 
http://edgeguides.rubyonrails.org/active_storage_overview.html

- http://edgeguides.rubyonrails.org/active_storage_overview.html#has-many-attached

- http://edgeguides.rubyonrails.org/active_storage_overview.html#previewing-files

- 
http://edgeguides.rubyonrails.org/active_storage_overview.html#direct-uploads

- 
http://edgeguides.rubyonrails.org/active_storage_overview.html#direct-uploads

- https://rubygems.org/gems/annotate
- 
http://imagemagick.org/script/index.php

- https://www.imagemagick.org/script/command-line-options.php