show rendered image

added loading icon
image is scaled to available space

pdb-ui/src/main/java/org/lucares/pdbui/HardcodedValues.java

@@ -0,0 +1,9 @@
+package org.lucares.pdbui;
+
+public interface HardcodedValues {
+
+	/**
+	 * The path for generated images relative to the context root.
+	 */
+	String WEB_IMAGE_OUTPUT_PATH = "img-generated";
+}