Revert 0141db6..3ed6bf3

This rolls back to commit 0141db6412f0cf2c94a19211d5e7785a2d0db82d.
focus feedback field on start
remove commented code
use component-bind
remove test code
workaround for ie10/11 bug

https://connect.microsoft.com/IE/feedback/details/811408
remove redundant div
use v-el + v-ref instead of querySelector
get rid off dialog component

because of scope behavior in component content
fix placeholder issue

text is a standalone component now
initial feedback text value
scale is now standalone component