AnnotationProcessor: it works with Java 7 & 8, too

The SupportedSourceVersion indicates the _newest_ release of Java
supported by the processor. SciJava supports Java 8 and earlier.

Author: ctrueden

src/main/java/org/scijava/annotations/AnnotationProcessor.java

@@ -70,11 +70,11 @@
 import org.scijava.annotations.AbstractIndexWriter.StreamFactory;
 
 /**
- * The annotation processor for use with Java 6 and above.
+ * The annotation processor for use with Java 8 and earlier.
  * 
  * @author Johannes Schindelin
  */
-@SupportedSourceVersion(SourceVersion.RELEASE_6)
+@SupportedSourceVersion(SourceVersion.RELEASE_8)
 @SupportedAnnotationTypes("*")
 public class AnnotationProcessor extends AbstractProcessor {