Use "dice" as the default mode instead of showing a help message
Remove the invalid options alert (which is unused)
Use ng-class along instead of $scope.tabClass()
Create LICENSE.txt
Lowercase the name of the app's module
Separate controllers into a new file
Start using ng-router for tools, with a new controller for each tool
Remove $scope.mode
Move the helpers module into tools.js

Note that for now, Helpers is still a JavaScript module, not an
angular module.
Use an angular value to expose the list of cards
Use ng-bind instead of ng-cloak
Fix issues with options and the Numbers tool
Use ng-model for number settings
Use ng-model with ng-list instead of Helpers.getInputList()
Use an ordered list for Sort List
Use a tabs instead of a navbar
Use a vertical pill nav