fixed ID deallocation problem based on patch from Steve Shepard fixes bug

* valid.c: fixed ID deallocation problem based on patch from
  Steve Shepard fixes bug #160893
* xmlmemory.c: improving comment.
* testapi.c: new test for xmlDictExists() is generated.
Daniel

doc/html/libxml-xmlschemastypes.html

@@ -29,6 +29,7 @@ A:link, A:visited, A:active { text-decoration: underline }
 <pre class="programlisting">int	<a href="#xmlSchemaValidateLengthFacet">xmlSchemaValidateLengthFacet</a>	(<a href="libxml-schemasInternals.html#xmlSchemaTypePtr">xmlSchemaTypePtr</a> type, <br />					 <a href="libxml-schemasInternals.html#xmlSchemaFacetPtr">xmlSchemaFacetPtr</a> facet, <br />					 const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value, <br />					 <a href="libxml-schemasInternals.html#xmlSchemaValPtr">xmlSchemaValPtr</a> val, <br />					 unsigned long * length)</pre>
 <pre class="programlisting">int	<a href="#xmlSchemaValidateListSimpleTypeFacet">xmlSchemaValidateListSimpleTypeFacet</a>	(<a href="libxml-schemasInternals.html#xmlSchemaFacetPtr">xmlSchemaFacetPtr</a> facet, <br />						 const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value, <br />						 unsigned long actualLen, <br />						 unsigned long * expectedLen)</pre>
 <pre class="programlisting">int	<a href="#xmlSchemaValidatePredefinedType">xmlSchemaValidatePredefinedType</a>	(<a href="libxml-schemasInternals.html#xmlSchemaTypePtr">xmlSchemaTypePtr</a> type, <br />					 const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value, <br />					 <a href="libxml-schemasInternals.html#xmlSchemaValPtr">xmlSchemaValPtr</a> * val)</pre>
+<pre class="programlisting"><a href="libxml-xmlstring.html#xmlChar">xmlChar</a> *	<a href="#xmlSchemaWhiteSpaceReplace">xmlSchemaWhiteSpaceReplace</a>	(const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value)</pre>
 <h2>Description</h2>
 <h3><a name="xmlSchemaCheckFacet" id="xmlSchemaCheckFacet"></a>Function: xmlSchemaCheckFacet</h3><pre class="programlisting">int	xmlSchemaCheckFacet		(<a href="libxml-schemasInternals.html#xmlSchemaFacetPtr">xmlSchemaFacetPtr</a> facet, <br />					 <a href="libxml-schemasInternals.html#xmlSchemaTypePtr">xmlSchemaTypePtr</a> typeDecl, <br />					 <a href="libxml-xmlschemas.html#xmlSchemaParserCtxtPtr">xmlSchemaParserCtxtPtr</a> ctxt, <br />					 const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * name)<br />
 </pre><p>Checks the default values types, especially for facets</p>
@@ -68,4 +69,6 @@ A:link, A:visited, A:active { text-decoration: underline }
 </pre><p>Checks the value of a list simple type against a facet.</p>
 <div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>facet</tt></i>:</span></td><td>the facet to check</td></tr><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>the lexical repr of the value to validate</td></tr><tr><td><span class="term"><i><tt>actualLen</tt></i>:</span></td><td>the number of list items</td></tr><tr><td><span class="term"><i><tt>expectedLen</tt></i>:</span></td><td>the resulting expected number of list items</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the value is valid, a positive error code number otherwise and -1 in case of an internal error.</td></tr></tbody></table></div><h3><a name="xmlSchemaValidatePredefinedType" id="xmlSchemaValidatePredefinedType"></a>Function: xmlSchemaValidatePredefinedType</h3><pre class="programlisting">int	xmlSchemaValidatePredefinedType	(<a href="libxml-schemasInternals.html#xmlSchemaTypePtr">xmlSchemaTypePtr</a> type, <br />					 const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value, <br />					 <a href="libxml-schemasInternals.html#xmlSchemaValPtr">xmlSchemaValPtr</a> * val)<br />
 </pre><p>Check that a value conforms to the lexical space of the predefined type. if true a value is computed and returned in @val.</p>
-<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the predefined type</td></tr><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>the value to check</td></tr><tr><td><span class="term"><i><tt>val</tt></i>:</span></td><td>the return computed value</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if this validates, a positive error code number otherwise and -1 in case of internal or API error.</td></tr></tbody></table></div><p><a href="../bugs.html">Daniel Veillard</a></p></td></tr></table></td></tr></table></td></tr></table></td></tr></table></td></tr></table></body></html>
+<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the predefined type</td></tr><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>the value to check</td></tr><tr><td><span class="term"><i><tt>val</tt></i>:</span></td><td>the return computed value</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if this validates, a positive error code number otherwise and -1 in case of internal or API error.</td></tr></tbody></table></div><h3><a name="xmlSchemaWhiteSpaceReplace" id="xmlSchemaWhiteSpaceReplace"></a>Function: xmlSchemaWhiteSpaceReplace</h3><pre class="programlisting"><a href="libxml-xmlstring.html#xmlChar">xmlChar</a> *	xmlSchemaWhiteSpaceReplace	(const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * value)<br />
+</pre><p>Replaces 0xd, 0x9 and 0xa with a space.</p>
+<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>a value</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new string or NULL if no change was required.</td></tr></tbody></table></div><p><a href="../bugs.html">Daniel Veillard</a></p></td></tr></table></td></tr></table></td></tr></table></td></tr></table></td></tr></table></body></html>