LogService: improve javadoc

Author: maarzt

src/main/java/org/scijava/log/LogService.java

@@ -38,12 +38,13 @@
  * Interface for the logging service.
  * <p>
  * The service supports five common logging levels: {@link #ERROR},
- * {@link #WARN}, {@link #INFO}, {@link #TRACE} and {@link #DEBUG}. It provides
- * methods for logging messages, exception stack traces and combinations of the
- * two.
+ * {@link #WARN}, {@link #INFO}, {@link #TRACE} and {@link #DEBUG}. It is
+ * extensible to additional levels as needed. It provides methods for logging
+ * messages, exception stack traces and combinations of the two.
  * </p>
  * 
  * @author Curtis Rueden
+ * @author Matthias Arzt
  */
 public interface LogService extends SciJavaService, Logger {
 
@@ -52,7 +53,7 @@ public interface LogService extends SciJavaService, Logger {
 
 	String LOG_LEVEL_BY_SOURCE_PROPERTY = "scijava.log.level.source";
 
-	/** Changes the log level of the root logger */
+	/** Changes the log level of the root logger. */
 	void setLevel(int level);
 
 	/**
@@ -69,7 +70,7 @@ public interface LogService extends SciJavaService, Logger {
 
 	/**
 	 * Setting the log level for loggers depending on their {@link LogSource}.
-	 * This will only effect loggers that are created after is method has been
+	 * This will only affect loggers that are created after this method has been
 	 * called.
 	 */
 	void setLevelForLogger(String source, int level);