Fix bug where smallImageUrls was null and causing Picasso to crash

https://trello.com/c/T5Rzu7yP/56-search-pesto-chicken-pizza-and-you-get-a-null-pointer-on-smallimageuri-in-newrecipeadapter-for-picasso
Merge branch 'master' into fix-picasso-null-pointer
Replace Picasso placeholders with better feedback ones.
Merge pull request #21 from SyntaxDesigns/fix-picasso-null-pointer

Fix bug where smallImageUrls was null and causing Picasso to crash