fix: don't close PrintStream when using printCell

...to avoid closing System.out which is used in most cases as target for
printing a Cell in tests, which lead to incomplete output from tests.

common/plugins/eu.esdihumboldt.hale.common.align/META-INF/MANIFEST.MF

@@ -51,6 +51,7 @@ Import-Package: com.google.common.base;version="1.6.0",
  eu.esdihumboldt.util.io,
  javax.annotation;version="[1.2.0,1.2.0]",
  net.jcip.annotations,
+ org.apache.commons.io.output,
  org.apache.commons.lang;version="2.4.0",
  org.locationtech.jts.geom,
  org.slf4j;version="1.5.11",

common/plugins/eu.esdihumboldt.hale.common.align/src/eu/esdihumboldt/hale/common/align/io/impl/JaxbAlignmentIO.java

@@ -19,8 +19,11 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.io.PrintStream;
 import java.net.URI;
 
+import org.apache.commons.io.output.CloseShieldOutputStream;
+
 import eu.esdihumboldt.hale.common.align.io.EntityResolver;
 import eu.esdihumboldt.hale.common.align.io.impl.internal.AlignmentToJaxb;
 import eu.esdihumboldt.hale.common.align.io.impl.internal.JaxbToAlignment;
@@ -171,7 +174,21 @@ public static void save(AlignmentType alignment, IOReporter reporter, OutputStre
 	}
 
 	/**
-	 * Print a cell to an output stream (intended for tests/debugging).
+	 * Print a cell to a {@link PrintStream} (intended for tests/debugging). The
+	 * stream is prevented from being closed, which is intended to prevent for
+	 * instance System.out from being closed.
+	 * 
+	 * @param cell the cell to print
+	 * @param out the output stream
+	 * @throws Exception if an error occurs trying to print the cell
+	 */
+	public static void printCell(MutableCell cell, PrintStream out) throws Exception {
+		printCell(cell, CloseShieldOutputStream.wrap(out));
+	}
+
+	/**
+	 * Print a cell to an output stream (intended for tests/debugging). The
+	 * stream is closed when the cell was written.
 	 * 
 	 * @param cell the cell to print
 	 * @param out the output stream