AbstractXMLStreamReader nextTag broken (does not follow semantics in javadoc).

The AbstractXMLStreamReader nextTag method incorrectly checks for END_DOCUMENT not END_ELEMENT.

The javadocs for this method read: "Skips any insignificant events (COMMENT and PROCESSING_INSTRUCTION) until a START_ELEMENT or END_ELEMENT is reached."

I propose changing END_DOCUMENT TO END_ELEMENT

Index: src/main/java/org/codehaus/jettison/AbstractXMLStreamReader.java
===================================================================
— src/main/java/org/codehaus/jettison/AbstractXMLStreamReader.java (revision 80)
+++ src/main/java/org/codehaus/jettison/AbstractXMLStreamReader.java (working copy)
@@ -54,7 +54,7 @@

public int nextTag() throws XMLStreamException {
int event = next();

• while (event != START_ELEMENT && event != END_DOCUMENT) {
  + while (event != START_ELEMENT && event != END_ELEMENT) { event = next(); }

  return event;