keep the ChangeLog compressed fix a segfault when using Close() test for

* libxml.spec.in: keep the ChangeLog compressed
* xmlreader.c: fix a segfault when using Close()
* python/tests/Makefile.am python/tests/reader8.py: test for
  the Close() reader API.
Daniel

python/tests/reader8.py

@@ -0,0 +1,37 @@
+#!/usr/bin/python -u
+#
+# this tests the entities substitutions with the XmlTextReader interface
+#
+import sys
+import StringIO
+import libxml2
+
+# Memory debug specific
+libxml2.debugMemory(1)
+
+#
+# Parse a document testing the Close() API
+#
+docstr="""<foo>
+<label>some text</label>
+<item>100</item>
+</foo>"""
+
+reader = libxml2.readerForDoc(docstr, "test1", None, 0)
+ret = reader.Read()
+ret = reader.Read()
+ret = reader.Close()
+
+if ret != 0:
+    print "Error closing the document test1"
+    sys.exit(1)
+
+del reader
+
+# Memory debug specific
+libxml2.cleanupParser()
+if libxml2.debugMemory(1) == 0:
+    print "OK"
+else:
+    print "Memory leak %d bytes" % (libxml2.debugMemory(1))
+    libxml2.dumpMemory()