When manually entering dates, typing '0' in month or day section resets the text to the placeholder.

Normally when entering a number, the focus shifts to the next field when the required digits are entered. For example, entering '10' for the day section, moves focus to the month. 
When we need a date where day < 10 however, we need to tab or enter the date separator to switch to the next part.

Allowing 0 in the dates should improve the users speed for entering dates and create a more unform behaviour.

Currently situation:
Date: 10/12/2017 => user input: 10122017
Date: 01/01/2017 => user input: 1/1/2017

When allowing 0 the last date can be entered as 01012017

The new calendar and date picker input components are great, but they are missing a significant functionality which has been available for a long time with the jquery calendar date picker -

The navigation is very basic and does not allow high level of years navigation - it requires monthly scrolling. This is very limiting for users who need to select a date between wide ranges. 

Input Switch grows with On/Off Labels length. Longer labels dont render correctly.

PDF Export customization similar to the existing example: https://demos.telerik.com/kendo-ui/pdf-export/page-layout

my company will use it for product, release 1.0 version soon, please ,about form component and dataviz first,please

You serriosly? where you button on example?
http://www.telerik.com/kendo-angular-ui/getting-started/#toc-project-setup
please add it