Merge pull request #800 from stowellm/goat

Data being recorded and formatted as an array of objects of key-value pa...
Merge pull request #801 from stowellm/goat

Queue data sets default to green/selected, dialog for if data sets conta...
Fixed the problem with the menu getting stuck when there is no wifi. Changed the way the menu is being disabled to the "proper" way it should be done. Fixed bug with project number so that if there is no internet, now the project id will be set to -1 and the user can eventually go back and switch it when they are ready to upload the experiment.
Merge pull request #802 from Rajia/ra553

Fixed the problem with the menu getting stuck when there is no wifi. Cha...
Began implementation of data saving in DataWalk, beginning with the required app delegate methods, and created a skeleton to save data in the MainViewController.m file