add HTTParty gem.
add keys to api_key module.
add flickr model to handle flickr api.
add get_photos action to PagesController to query for photos.
comment out real query from flickr and replaced with test to avoid calling too often.
change flickr model to render img using original size and format
update TEST contanst in pages controller to use new img tags
update main view to include div for counts of photos
update main js to render photos
style elements on main page to make img render responsively with 16:9 ratio