Update angular2 to the latest version 🚀

Version 6.2.0 of angular2 packages were just published.

Dependency	`angular2`
Current Version	5.2.5
Type	devDependency

The version 6.2.0 is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

It might be worth looking into these changes and trying to get this project onto the latest version of angular2.

If you have a solid test suite and good coverage, a passing build is a strong indicator that you can take advantage of these changes directly by merging the proposed change into your project. If the build fails or you don’t have such unconditional trust in your tests, this branch is a great starting point for you to work on the update.

Release Notes

bamboo-shampoo

Highlights

An initial implementation of virtual scrolling is now available in @angular/cdk-experimental.
Please note that, since these components are still experimental, they may have bugs and the API
is subject to change.

Bug Fixes

autosize: textarea receiving focus on init (#11460) (7d447c2), closes #11451 #11308
button: disable all animations when using the NoopAnimationsModule (#11477) (1a75152), closes #10590
checkbox, radio: remove webkit tap highlights (#11349) (4b2cc1a)
form-field: disable all animations when using NoopAnimationsModule (#11371) (9062640), closes #10590
form-field: infinite loop when using outline appearance and element isn't in the DOM (#11406) (e592615), closes #11329
menu: lazy-rendered content being duplicated when toggling quickly (#11348) (fb5cdb2), closes #11331
nav-schematics: update isHandset$ type and fix template expression (#11448) (b9041e3), closes #11445 #11441
overlay: incorrect position when using flexible positioning and rtl on the body (#11393) (acc24c4), closes #11387
accordion, expansion: prevent nested expansion panels from registering to the same accordion (#11342) (9bf720a)
select: panel content blurry in some browsers (#11434) (3dc3fcd)
slide-toggle: disable animations when using NoopAnimationsModule (#11414) (1d96d5a), closes #10590
slider: disable animations when using NoopAnimationsModule (#11422) (cf17ef7), closes #10590
table: data source not unsubscribing from render changes subscription (#11394) (9313f18), closes #11382

Features

a11y: add cdkAriaLive directive (#11352) (64a70ad)
expansion: allow expansion indicator positioning (#8199) (51d859f)
overlay: allow for Directionality instance to be passed in (#11411) (be577b1)
progress-spinner: add injection token for configuring the diameter and stroke globally (#11493) (c3899cf), closes #11490
collections: add ArrayDataSource, a DataSource wrapper for Array and Observable (#11354) (f59658d)

Performance Improvements

overlay: only compute and emit position changes if there are subscribers (#11431) (c68ccc9)

FAQ and help

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).

Your Greenkeeper bot :palm_tree:

NgGithubContribCalendar / ng-github-contrib-calendar