Delete functionality complete. Project implements correctly all creat…

…e, read and delete operations

Added starter delete function on Database class

Finished code for part two. Full init() and getOpenCursor() functions…

…. Completed showTask() function.

Added empty showTasks function

Finished code for part one. Includes the full persist function on the…

… database class.

It only contains the entry point (the index.js file) of the app and a…

…n empty database.js class