Input field is not always scrolled / zoomed to visible area

[rainemak]

Steps to reproduce with following example (number input is 3rd last input type at the time of reporting this):

0. Take example that is at the end into use
1. Turn device to landscape
2. Tap to number field
3. Pan content so that half of the 4th last input type is visible ("Local Date and Time") and keyboard should be still open
4. Tap to "Local Date and Time" field

Expected outcome:
"Local Date and Time" field is scrolled to the visible area

Actual outcome:
"Local Date and Time" field is not scrolled to the visible area

Addition information:
My gut feeling is that error is lucking somewhere over here and changed virtual keyboard height might play a role there (like from number to text type):
https://git.merproject.org/mer-core/embedlite-components/blob/master/jsscripts/embedhelper.js#L387

Some previous discussion in PR #15

Example to reproduce:

 import QtQuick 2.1
 import Sailfish.Silica 1.0
 import Sailfish.WebView 1.0

 ApplicationWindow {
     allowedOrientations: Orientation.All
     initialPage: WebViewPage {
         allowedOrientations: Orientation.All
         anchors.fill: parent
         WebView {
             anchors.fill: parent
             url: "http://www.456bereastreet.com/lab/html5-input-types/"
             active: true
         }
     }
 }

[rainemak]

When fixing this one use JB#36832 bug reference so that we get proper changelog entry.