ignore eclipse default output folder

Signed-off-by: Sebastian Hoß <mail@shoss.de>
Remove unused class

Signed-off-by: Sebastian Hoß <mail@shoss.de>
reference latest stable release

Signed-off-by: Sebastian Hoß <mail@shoss.de>
Use Eclipse JDT annotations

Signed-off-by: Sebastian Hoß <mail@shoss.de>
[maven-release-plugin] prepare release suppress-warnings-2.0.0