Guseyn Ismayylov

and rename: `data-append-to` to `data-append-into`, `data-prepend-to` to `data-prepend-into`

or find/create simple alternative

attributes: `data-key`, `data-actions-on-response`

@tzkmx thanks for the interest, I didn't decided yet, it would be nice to find/build a library with mocks for DOM which can help to write unit tests, and then...

it's impossible to understand

@davidrthorn eight note under triplet is longer than sixteenth note, I just don't understand this issue, to me 1/8 - (1/8 / (3/2)) = 0.0416, while 1/8 - 1/16 =...