Possibility of vertically growing editor

[pellmann]

What I would like to achieve is that the editor is started with a line size of e.g. 6. But if the user then enters more text, the editor should grow vertically up to a maximum number of lines. Ace basically supports this with the options minLines and maxLines. (it the same function the editor has on the landing page of https://ace.c9.io/)

It would be nice to be able to use these Ace functions directly. I think additionally the editor div would have to change from position:absolute to position:static for this case?