More directives

[m1guelpf]

I have a few directives I created for my projects, and I thought you could be interested in adding some to this package:

• Repeat and EndRepeat: A for loop that repeats the contents the number of times specified. Example:

  @repeat(3)
  Test
  @endrepeat

• Production: A custom IF directive that only runs when in production

• Local: Same as above but for local enviroment

[gizburdt]

We like the repeat directive. Can you create a PR for that one?