Refactored output into directive
Adds support for selecting app code
Refactor styling of code output
 Fixed height of code output
Styling of error and fixed label
Adds button to add step to repeat
More work on styling and overall layout
Adds autosave of intervals
Made input fields required for various targets
Adds confirm when deleting repeat

If repeat step has more than two steps, confirm the deletion
Adds class to first h1
Changed border style for invalid input fields
Major work on the how to page