Updated Target

Updated Target in preparation for build

Fixed pom to exclude dead code.

Update version in the manifest & features.

[#376] CLeaning and simplifying the pom configuration.

Merge github.com:openETCS/toolchain

Update release note Milestone release 20

[issue #411] Adding org.openetcs.pror.tracing.sysml to build.

Add release notes for the Milestone release 16

Rename the Toolchain Eclipse help closes #388