Notification and Data Center Updates
* Data center temporarily linked to previous script
* Data processing can now be seen (however it is inefficient and the web result has not been modified for a phone display)
* Added an edit limit button to the notification center
* Made the notification center manage apps and their time limits dynamically
* Add limit now uses a dropdown of all the apps on the phone to select app name
* Created a class to contain custom general methods for easier reuse