Merge branch 'master' into docker-multiarch

.gitlab-ci.yml

Dockerfile

apps/addressbook/build.xml

apps/desktopgui/build.xml

apps/i2pcontrol/build.xml

apps/i2psnark/java/build.xml

apps/i2psnark/java/src/org/klomp/snark/I2PSnarkUtil.java

apps/i2psnark/java/src/org/klomp/snark/SnarkManager.java

apps/i2psnark/java/src/org/klomp/snark/Storage.java

...2psnark/java/src/org/klomp/snark/web/I2PSnarkServlet.java

apps/i2psnark/launch-i2psnark

apps/i2psnark/resources/js/initajax.js

apps/i2psnark/resources/js/search.js

apps/i2psnark/resources/themes/dark/snark.css

apps/i2psnark/resources/themes/light/snark.css

apps/i2psnark/resources/themes/ubergine/snark.css

apps/i2psnark/resources/themes/vanilla/snark.css

apps/i2ptunnel/java/build.xml

apps/imagegen/identicon/build.xml

apps/imagegen/imagegen/build.xml