Add RSSStringDumpParser class, for issue #17.

src/main/java/org/mcsoxford/rss/RSSStringDumpParser.java

@@ -0,0 +1,44 @@
+package org.mcsoxford.rss;
+
+import java.io.InputStreamReader;
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.IOException;
+
+/*
+ * RSS feed to string parser.
+ *
+ * @author Joris van Winden
+ */
+
+public class RSSStringDumpParser {
+
+  public RSSStringDumpParser() {}
+
+  /*
+   * Parses input stream as a string. It is the responsibility of the caller to
+   * close the stream.
+   * 
+   * @param feed RSS 2.0 feed input stream
+   * @return string representation of the feed
+   * @throws RSSFault when io goes wrong
+   */
+  public String parse(InputStream feed) {
+
+    BufferedReader reader = new BufferedReader(new InputStreamReader(feed));
+
+    StringBuilder result = new StringBuilder();
+
+    String line;
+
+    try {
+      while((line = reader.readLine()) != null) {
+        result.append(line);
+      }
+    } catch (IOException e) {
+      throw new RSSFault(e);
+    }
+
+    return result.toString();
+  }
+}