0.20.0

Changes

• Feature to sign existing rpm file
• Follow up for feature to sign existing rpm file
• Update dependencies

Maven coordinates

<dependency>
  <groupId>org.eclipse.packager</groupId>
  <artifactId>packager-core</artifactId>
  <version>0.20.0</version>
</dependency>
<dependency>
  <groupId>org.eclipse.packager</groupId>
  <artifactId>packager-deb</artifactId>
  <version>0.20.0</version>
</dependency>
<dependency>
  <groupId>org.eclipse.packager</groupId>
  <artifactId>packager-rpm</artifactId>
  <version>0.20.0</version>
</dependency>