Add add recipe button to each recipe on the search page

You can now click on a button and it will try to send you a
request that does not work yet.
Merge branch 'master' into TLR-add-recipes-to-my-recipes
Add recipe sends post request to collected recipes

I am doing something nonstandard. I don't want to create a new
recipe- instead I want to reorganize the existing recipe into
a user's collected recipes.  The fact that the recipe already exists
means that I'm not doing a standard crud request, so the routing
gets a little quirky.  That's why I'm passing a url paramter in a post
request string. This seems like a stinky way to do it.
User can add recipes to their My Recipes thingy

Known issues: the user can add the same recipe to their recipes
several times
No indication on the main page if a recipe has already been added.
Indentation fix app/views/welcome/index.html.erb
Search pages show if user has collected recipe

A user can see immediately if they have added a recipe to
their recipes.  If they have, text saying 'recipe added' appears.
If they have not, a button saying 'add' appears.
Merge pull request #28 from tararoys/TLR-add-recipes-to-my-recipes

Tlr add recipes to my recipes