Update pom.xml to work with latest android tools
Update pom.xml to work with latest android tools

aapt moved, so we need a newer version of the android-maven-plugin to
build properly.

charafau/weechat-android,breunigs/weechat-android,charafau/weechat-android,flashcode/weechat-android,breunigs/weechat-android,flashcode/weechat-android,flashcode/weechat-android