[LEARNER-4238] Upgrade to Android Studio 3+and SDK 27

Description

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      1. Description

(https://openedx.atlassian.net/browse/LEARNER-4238)

Hello guys, I've been working these days to upgrade the builds tools and Android Studio to the latest version and I made some progress. On the overall, almost all dependencies updated and I spend some time dealing with the breaking changes and making AAPT2 work.

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      1. Notes
        I still need to fix some tests that depend on greenrobot EventBus getting ignored and some tests falling for some bug with RoboGuice.

The EventBus dependent tests are passing but AS counts him has ignored.
![image](https://user-images.githubusercontent.com/813131/38871279-5e5e2bc8-421e-11e8-9498-f31e0cb8d287.png)

Status

Assignee

Unassigned

Reporter

Open Source Pull Request Bot

Contributor Name

Matheus Gambati

Repo

edx/edx-app-android

Customer

None

Epic Link

None

OSCM Assignee

None

Platform Map Area (Levels 1 & 2)

None

Platform Map Area (Levels 3 & 4)

None

Priority

Unset
Configure