editorconfig: max line length set

max line length warnings removed
missing Copyright added
useless publics removed
unmaintainable Javadoc tags: @author removed
helper class warnings removed
field default value initialization removed
Multiple warnings removed
pref: checkstyle warnings removed
Checkstyle will fail the build process if it detects violations
switch default cases error logger added

osgi_test/src/test/java/io/moquette/test/osgi/MoquetteOsgiTest.java

@@ -26,7 +26,6 @@ import org.ops4j.pax.exam.Option;
 import org.ops4j.pax.exam.junit.PaxExam;
 import org.osgi.framework.Bundle;
 import org.osgi.framework.BundleContext;
-import org.osgi.framework.ServiceReference;
 
 import javax.inject.Inject;
 
@@ -38,7 +37,7 @@ import javax.inject.Inject;
 public class MoquetteOsgiTest {
     @Inject
     private BundleContext bundleContext;
- 
+
     @Configuration
     public Option[] config() {