AndroDNS - fix UCM

Fix #1828 (comment 226294496)

Note that 1.6 will still fail to build

EBUG: buildserver > INFO: Successfully built version 1.6 of androdns.android.leetdreams.ch.androdns
DEBUG: buildserver > DEBUG: > /home/vagrant/android-sdk/build-tools/26.0.0/aapt dump xmltree build/androdns.android.leetdreams.ch.androdns/app/build/outputs/apk/release/app-release-unsigned.apk AndroidManifest.xml
DEBUG: buildserver > DEBUG: Checking build/androdns.android.leetdreams.ch.androdns/app/build/outputs/apk/release/app-release-unsigned.apk
DEBUG: buildserver > DEBUG: > /home/vagrant/android-sdk/build-tools/26.0.0/aapt dump badging build/androdns.android.leetdreams.ch.androdns/app/build/outputs/apk/release/app-release-unsigned.apk
DEBUG: buildserver > INFO: Created directory for storing developer supplied reference binaries: 'unsigned/binaries'
DEBUG: buildserver > INFO: ...retrieving https://github.com/gryphius/androdns/releases/download/v1.6/androdns.apk
DEBUG: buildserver > DEBUG: Starting new HTTPS connection (1): github.com
DEBUG: buildserver > DEBUG: https://github.com:443 "GET /gryphius/androdns/releases/download/v1.6/androdns.apk HTTP/1.1" 302 None
DEBUG: buildserver > DEBUG: Starting new HTTPS connection (1): github-production-release-asset-2e65be.s3.amazonaws.com
DEBUG: buildserver > DEBUG: https://github-production-release-asset-2e65be.s3.amazonaws.com:443 "GET /84719535/4e345700-83d0-11e9-98f6-f2aae6f9380b?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20191009%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20191009T084453Z&X-Amz-Expires=300&X-Amz-Signature=f9abe9d097e6693e85b7b59f1bdf6fc9b56e208c5352e97b1a3aabf3ae96439a&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Dandrodns.apk&response-content-type=application%2Fvnd.android.package-archive HTTP/1.1" 200 2066731
DEBUG: buildserver > WARNING: Ignoring META-INF/MANIFEST.MF from unsigned/androdns.android.leetdreams.ch.androdns_22.apk
DEBUG: buildserver > WARNING: Using Java's jarsigner, not recommended for verifying APKs! Use apksigner
DEBUG: buildserver > ERROR: JAR signature failed to verify: /tmp/tmp03j3_n2o/sigcp_androdns.android.leetdreams.ch.androdns_22.apk
DEBUG: buildserver > jarsigner: java.lang.SecurityException: SHA1 digest error for classes.dex
DEBUG: buildserver >
DEBUG: buildserver > INFO: ...NOT verified - /tmp/tmp03j3_n2o/sigcp_androdns.android.leetdreams.ch.androdns_22.apk
DEBUG: buildserver > DEBUG: > diff -r /tmp/tmp03j3_n2o/unsigned_binaries_androdns.android.leetdreams.ch.androdns_22.binary /tmp/tmp03j3_n2o/_tmp_tmp03j3_n2o_sigcp_androdns.android.leetdreams.ch.androdns_22
DEBUG: buildserver > DEBUG: removing unsigned/androdns.android.leetdreams.ch.androdns_22.apk
DEBUG: buildserver > DEBUG: removing unsigned/binaries/androdns.android.leetdreams.ch.androdns_22.binary.apk
DEBUG: buildserver > ERROR: Could not build app androdns.android.leetdreams.ch.androdns: compared built binary to supplied reference binary but failed
DEBUG: buildserver > ==== detail begin ====
DEBUG: buildserver > Unexpected diff output:
DEBUG: buildserver > Binary files /tmp/tmp03j3_n2o/unsigned_binaries_androdns.android.leetdreams.ch.androdns_22.binary/content/classes.dex and /tmp/tmp03j3_n2o/_tmp_tmp03j3_n2o_sigcp_androdns.android.leetdreams.ch.androdns_22/content/classes.dex differ
DEBUG: buildserver > ==== detail end ====
DEBUG: buildserver > DEBUG: Error encoutered, stopping by user request.

..but that's a different issue