@everyone added cloud functionality, waiting page

How do we want to share the project folder for the AppEngine? I am unsure how to put it on the repo/where I would put it on the repo

What I did:
- added all the cloud files
- refactored them to work for tractable
- changed the historytab to add a sync button
- added an activity where we can do the duration timer, called WaitingActivity, in between MainActivity and ManualInputActivity
- made a short list in the README.md of all the things you must change to run the code on your local machine (api key, server url, etc)

Issues:
- cloud functionality not 100%. Issue when delete clicked on website

To-do
- implement a timer on the waiting page
- implement poop facts/jokes on waiting page
- get cloud to work