Fix for error described on forum

[rysi3k]

Fix for error described in: http://forum.ionicframework.com/t/problem-with-focues-input-and-scrolling/5699

[perrygovier]

Hey @rysi3k thanks for the PR.

Could you provide a working example in codepen demonstrating what this fixes?

Changes to tap.js are very treacherous, so we want to very cautious about adding this in. We'll definitely want to add unit tests to demonstrate the problem and that that this fixes it. Also, is there a way this can be done without an !important CSS flag?

[ajoslin]

This looks good to me. Problems this fixes:

• The !important flag is needed when the original input has for example a position: static on it
• We are sure to match the style of the original input
• We are sure to match the classNames on the original input

I'll pull this down and test it out.