Size of Android app increased by 600%

Issue generated from Tuleap's migration script. Originally submitted by: Dennis Schridde (devurandom)

The Android client for the previous version (2.1.0?) was abotu 30MiB big on my phone. The client of this version (2.2.0) is a 50MiB download and consumes about 180MiB on my phone. This seems to be wrong.

Samsung Galaxy S4 Mini LTE (GT-i9195), CyanogenMod 13.0-20160820 (Android 6.0.1)