use now maven-exec to create packages as part of the build

.travis.yml

@@ -1,7 +1,23 @@
 language: java
 jdk: oraclejdk8
 
-script: mvn clean install -DskipTests
+os:
+  - linux
+  - osx
+
+before_install:
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then echo "put custom osx code in here"    ; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then echo "put custom linux code in here" ; fi
+
+matrix:
+  include:
+    - os: linux
+      jdk: oraclejdk8
+    - os: osx
+      osx_image: xcode9
+
+# -Dgpg.skip to not sign installer with gpg, if omitted add a -Dgpg.passphrase=thephrase or use encrypted entry in settings.xml see http://maven.apache.org/plugins/maven-gpg-plugin/usage.html
+script: mvn clean install -DskipTests -Dgpg.skip
 
 notifications:
   slack:

package/osx/finalize.sh → gui/package/sign.sh

@@ -44,7 +44,6 @@ cp "/Users/dev/vm_shared_windows/bundles/$exe" "/Users/dev/vm_shared_win10/$win6
 
 cd "$target_dir"
 
-
 gpg --digest-algo SHA256 --local-user [email protected] --output $mac.asc --detach-sig --armor $mac
 gpg --digest-algo SHA256 --local-user [email protected] --output $deb64.asc --detach-sig --armor $deb64
 gpg --digest-algo SHA256 --local-user [email protected] --output $deb32.asc --detach-sig --armor $deb32