Merge pull request #5 from elyselturner/master

I switched the locations of the buttons
Changing header text to display our tagline. Changing Action Bar font size to be larger. Making Android logo transparent.
Adding toasts to clicking the like and dislike buttons.
Adding a common dimen for the button width, making buttons the same width.
Adding custom Toast method to display toast directly above images with big text.
Adding basic skeletons for food profiles, fragments for those profile, stacker for profile data as a stack, and an interface listener.
Updating .gitignore to ignore .txt files. Adding lots of pseudocode to FoodProfileStacker to describe how to read in JSON data and put it in food profiles.
Added all the json stuff, do in background stuff