Changes in Mini-XML 2.2

• Added shared library support (STR #17)
• mxmlLoad*() now returns an error when an XML stream contains illegal control characters (STR #10)
• mxmlLoad*() now returns an error when an element contains two attributes with the same name in conformance with the XML spec (STR #16)
• Added support for CDATA (STR #14, STR #15)
• Updated comment and processing instruction handling - no entity support per XML specification.
• Added checking for invalid comment termination ("--->" is not allowed)