This patch removes the Mozart dependencies from object.dart and
layer.dart, which will make it easier for us to move the Mozart
dependencies purely into the Fuchsia tree.

* Update ISSUE_TEMPLATE.md

Let's move the flutter doctor stuff last since it's usually not as critical as the logs.

* Update ISSUE_TEMPLATE.md

Fixes #988

The diagnostic port forward can be arbitrarily assigned and typically
is not the default

Fixes https://github.com/flutter/flutter/issues/5867

The current implementation matches the default behaviour of the material
scaffold.

Fixes https://github.com/flutter/flutter/issues/4478

fixes https://github.com/flutter/flutter/issues/6163

Refined query template with "new" keyword.

DragTarget would call setState after it was disposed in didLeave
and didDrop. Fixes #6128.

Turns out the lowest version allowed here isn't compatible with
flutter_tools' usage of this package.

Now dart:ui does the decoding of the pointer data itself, which means we don't
need to do it in the framework.

* use less granular progress

* update restart text

* fix flutter watch benchmark

Syncs https://github.com/flutter/cocoon/commit/d2d7950ecd2c72421d75d9b5d54805cc554e92a8

* Split Android/iOS impl behind a unified interface

Syncs https://github.com/flutter/cocoon/commit/db87e10fa54317115479d0b85280c7e5eed08ff7

* Switch from pub get to flutter packages get

Syncs https://github.com/flutter/cocoon/commit/b378005cbbc5330058d5240a2970ca477c2c9722

* "silent" option in test runner; fix analysis errors;

This demo doesn't work properly in landscape and is confusing. It's
really more of a test of the material arc code.

Fixes #5710

Fixes #5141

Rather than removing all the padding from an AlertDialog, we now just use
Dialog directly for the date picker.

* make app ids more unique

* in-line the uuid class

To match the Align widget (and several other widgets).

Fixes #6101

For consistency with Tween.

Fixes #5169

libimobiledevice 1.2.0 is incompatible with Xcode >= 8.0. Since the
libimobiledevice tools don't include a --version flag, check for valid
exit code on running idevicename, if an iOS device is connected.

When using --use-application-binary:

- [x] Stop flutter run from checking for a pubspec.yaml in current directory
- [x] Stop flutter run from invoking pub get
- [x] Set 'shouldBuild' based on --use-application-binary
- [x] Stop requiring 'lib/main.dart' to be present before running.
- [x] Stop building an FLX when launching on Android