Merge pull request #83 from vector-im/jryans/gpg-keys

Persist GPG keys for Linux builds via Docker

scripts/in-docker.sh

@@ -14,6 +14,7 @@ docker run --rm -ti \
  -v ${PWD}:/project \
  -v ${PWD}/docker/node_modules:/project/node_modules \
  -v ${PWD}/docker/.hak:/project/.hak \
+ -v ${PWD}/docker/.gnupg:/root/.gnupg \
  -v ~/.cache/electron:/root/.cache/electron \
  -v ~/.cache/electron-builder:/root/.cache/electron-builder \
  riot-desktop-dockerbuild "$@"