Merge pull request #19 from yosifkit/stretch

Update to debian stretch now that jessie is moving to LTS

debian/Dockerfile

@@ -1,4 +1,4 @@
-FROM debian:jessie
+FROM debian:stretch-slim
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
 		ca-certificates \
@@ -22,7 +22,9 @@ RUN buildDeps=' \
 		autoconf \
 		automake \
 		bzip2 \
+		dirmngr \
 		dpkg-dev \
+		gnupg \
 		libglib2.0-dev \
 		libncurses-dev \
 		libperl-dev \
@@ -42,6 +44,7 @@ RUN buildDeps=' \
 # gpg: key DDBEF0E1: public key "The Irssi project <staff@irssi.org>" imported
 	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 7EE65E3082A5FB06AC7C368D00CCB587DDBEF0E1 \
 	&& gpg --batch --verify /tmp/irssi.tar.xz.asc /tmp/irssi.tar.xz \
+	&& gpgconf --kill all \
 	&& rm -rf "$GNUPGHOME" /tmp/irssi.tar.xz.asc \
 	&& mkdir -p /usr/src/irssi \
 	&& tar -xf /tmp/irssi.tar.xz -C /usr/src/irssi --strip-components 1 \