copy padding to hidden textarea

[koctep]

In chrome width setted incorectly, this patch fixing it. But still has problem on mobile chrome.

[monospaced]

Thanks for the contribution :+1:

However, I believe the padding should be taken care of here:

https://github.com/monospaced/angular-elastic/blob/master/elastic.js#L66

and then here:

https://github.com/monospaced/angular-elastic/blob/master/elastic.js#L150

Would you be able to provide a plunkr or similar showing this Chrome padding issue in action?

[strille]

I noticed that if you change the padding during the lifetime of the textarea, then angular-elastic doesn't take the new padding into account.

[optyler]

I think this is related #101, but I can't reproduce it in plunkr :/