Changes in Mini-XML 2.0

• New programmers manual.
• Added UTF-16 support (input only; all output is UTF-8)
• Added index functions to build a searchable index of XML nodes.
• Added character entity callback interface to support additional character entities beyond those defined in the XHTML specification.
• Added support for XHTML character entities.
• The mxmldoc utility now produces XML output which conforms to an updated XML schema, described in the file "doc/mxmldoc.xsd".
• Changed the whitespace callback interface to return strings instead of a single character, allowing for greater control over the formatting of XML files written using Mini-XML. THIS CHANGE WILL REQUIRE CHANGES TO YOUR 1.x CODE IF YOU USE WHITESPACE CALLBACKS.
• The mxmldoc utility now produces XML output which conforms to an updated XML schema, described in the file "doc/mxmldoc.xsd".
• Changed the whitespace callback interface to return strings instead of a single character, allowing for greater control over the formatting of XML files written using Mini-XML. THIS CHANGE WILL REQUIRE CHANGES TO YOUR 1.x CODE IF YOU USE WHITESPACE CALLBACKS.
• The mxmldoc utility is now capable of documenting C++ classes, functions, and structures, and correctly handles C++ comments.
• Added new modular tests for mxmldoc.
• Updated the mxmldoc output to be more compatible with embedding in manuals produced with HTMLDOC.
• The makefile incorrectly included a "/" separator between the destination path and install path. This caused problems when building and installing with MingW.