Gradle improvements

1. not to use task execute()
2. not to use leftShift

Add android X support

Always quote ANDROID_HOME incase of spaces.

fix: cyclic task dependency with nativescript-plugin-firebase plugin

update LICENSE

nativescript-cli/4116

fix: merges assets executed before the metadata is generated

Add static and default interface methods support

Remove unnecessary use of regex

Improve extend

Use gradle plugin 3.2.1 instead of 3.2.0

Added a setting to wrap calls to CallJSMethod in try catch

Add a concrete exception when the runtime cannot be found

RC

Merge release to master.

Handle NullPointerException in metadata generator

RC

feat: use implementation for support.design

Use implementation instead of debugImplementation for com.android.support:design.
This fixes a ...

feat: bump supportVer fallback value to 28.0.0

RC

Upgrade V8 to 6.9.427.23

This reverts commit a0f195b090f3a70a4d71c8d4c8bf6608a99d21d9.

This reverts commit a2265308c17d30fa00c152b4ce13a7d8c69d01cf.

This reverts commit 6cac32e1fb1f5f69fc97ba2507e328c275f4ca02.

This reverts commit aa7b961cd37f9a2c0e1a9d9dfd3188c062e6c91e.

This reverts commit 899afff6ebbbbb10f2a6d6d094eb232c1ae8a082.

RC

update package.json with the new gradle versions and runtime version

Revert back to v8 6.7.288.46

This reverts commit e75d84f3d201a79ee439c068f21c65f700dec917.

This reverts commit 51b7d9c439f4417047d601001be67a937f50c661.

This reverts commit a06255f7227dcc413cd67bdbac3cc25abb6c5411.

This reverts commit f3840d44d5380db11ae478a4e33904ab6e2dcae0.

This reverts commit dc35d80f6c21c5a57f69381f4ac155062baaffff.

Creating RC

Upgrade gradle to 4.10.2 in main gradle-wrapper.properties

added support for before-plugins.gradle file applied before plugin

Trifonov/gradle update

Trifonov/gradle update