* android templates should add density and screenLayout to config changes

* update the rest of the manifests

* first round fastlane working on Android

* clean up and start ios

* Partial iOS

* Got a fastfile that works on iOS

* Finalize Android push instructions

* Finalize instructions for iOS

* Extra cleanup and optipng

* Disable readme autogen and add a default readme

* Add framework-side support for system text scale factor.

* Rolling engine to e3404b81a53ba3180c7623a6f2190ebb28518f30
  Additional changes rolled in with engine change:
    libtxt: implementation of GetRectsForRange that processes a line at a time - e3404b8
    Provide an entropy source to the Dart engine (#4161) - e1aa867
    libtxt: search for fallback fonts that can match emoji and CJK characters - 8061df1
    Roll skia to e4679fa06a. (#4157) - 267e7a8
    Update buildroot to 53fea9aebbcc39c6522731471a1a45960ee0685e (#4160) - 02ea7ae
    Revert engine Dart roll. (#4158) - 14aab33
    Add support for system text scale factor. (#4124) - b2a7f4b
    Include _http into sky_engine libraries for analyzer (#4154) - b930f10
    libtxt: Remove postprocess_line and improve tracking of X offsets - 86f95f0
    libtxt: remove redundant line_widths (#4152) - 14bf515
    Roll dart to ade37f931e90b0fdb8fe16d6bf6f089545da55b6 (#4151) - 6f1264f

Enable plugin infra for both iOS and Android post-#9791.

Brings hello_world and flutter_gallery Android code in line with the
corresponding iOS code.

This reverts commit 8da4778e.

* Update hello_world to new gradle based build flow

* Update flutter_gallery to gradle based build

* Align hello_services with new gradle based build

* Update platform_services to new gradle based build

* Upgrade stock to gradle based build

* s/sky/flutter/ in Android templates

* update engine.version with a compatible engine version

* replace more SkyActivity references with FlutterActivity

This is needed to update an app's layout when a soft keyboard is shown

Fixes #5141

Closes https://github.com/flutter/flutter/issues/6037

* For reals allow Gallery to be installed by Nexus 5, 5X

* fix for long line

Cargo culted from http://stackoverflow.com/questions/24690739/nexus-5-galaxy-s5-and-some-other-devices-are-showing-not-compatible-in-google

BUG=https://github.com/flutter/flutter/issues/5373

See https://github.com/flutter/flutter/issues/5570

Change the Gallery sample Android package to not conflict with the version published in Play (#5579)

* updates from the flutter gallery rename

* rename ids to io.flutter.gallery

@HansMuller

This allows us to adjust exactly which gestures we're listening for
during layout, which I'll use to kill a SizeObserver.

@abarth @hixie

Very simple so far. This schedules an alarm to fire once a day, kicking
off a service that downloads a new app.skyx from a hardcoded URL. The
new skyx replaces the current one.

@abarth

@abarth

@abarth

This is just one of many steps in preparation for turning
fitness into a play-store ready app.

@abarth @collinjackson