v1.1.0

Add Calculus Flashcards app

• Add the MATLAB app CalculusFlashcards.mlapp
• Update the README to discuss the Calculus Flashcards app
• Add links and instructions related to the Calculus Flashcards app at each
  practice point in derivativeRulesCombinations.mlx, derivativeRulesPowers.mlx,
  and derivativeRulesTranscendentals.mlx

Calculus Flashcards is a MATLAB® app that allows the user to select among four different categories of derivative practice (simple derivatives, linear combinations of powers, product rule, and chain rule) or integral practice (simple integrals, definite integrals, substitution, and integration by parts) or any combination thereof. Variables can be restricted to x and t or varied randomly over a larger set of options. The solutions can be displayed immediately or multiple attempts at each problem can be recorded. Results are tracked by type of problem including correct solutions, incorrect solutions, and problems which are not even attempted before generating a new one.

Full Changelog: v1.0.2...v1.1.0