To Do:
*) recursive XInclusion for mapping XML files (help wanted)
*) some kind of import of XML document fragments from URLs or Files into XML Document created by "dbsql2xml"
*) multiple connections to more than one database at one time
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*) make package "net.sf.dbsql2xml"
*) rename class name from "dbsql2xml" to "DbSql2Xml" (do You want it?)
*) XSLT transformation within dbsql2xml

Done:
0.22
*) added support for XInclusion (non recursive) – reusability or chaining – of mapping XML files; XSD changed, but mapping XML files stay backward compatible; be carefull using global variables with same names
*) changed priority of global variables; now ones from constructors (URL) covers ones from mapping XML files
*) added example "treeXMLMappingWithXInclusionAndCharset.xml" and "productMappingToBeXIncludedIntoTreeXML.xml" files with more detail comments of elements and attributes
*) changed build batch file

0.21
*) added missing "Connection.close()" at the end of "dbsql2xml" class into "doExport()" method
*) added "System.gc()" at the top level catch
*) changed "magic integers" (java.sql.Types – constants) with constant names (replaced "1" by "java.sql.Types.CHAR") in "getColumnValueAsString()" method [thanks to Gerd]
*) changed way to determine, if JDBC driver supports multiple ResultSet-s per one Statement; up to 0.20 it was hard-coded as database property, now it is determined by new element "multiStatementDriver" in mapping XML; this means, that in 0.21 is breakdown of compatiblity of mapping XML file – in current mapping XML files You must add "multiStatementDriver" element into each mapping XML file; XML Schema was changed
*) changed comments inside source code to be more understandable
*) changed build batch file to be more independent
*) fixed security issue – "mappingXML" folder of servlet example is moved into "WEB-INF" folder to prevent reading mapping XML files
*) do update jTDS to 1.2 (JDBC driver for MS SQL Server and Sybase – it become much more faster)

0.20
*) fixed problem with MS Access, when MEMO field is null [thanks to fred0815]

0.19
*) improved Exception reports (all arguments of all methods are outputed)

0.18
*) added stdout report on exception in processing table and column (their values are reported)
*) improved handling of null values
*) added global character encoding or per each column of each table (changes in XSD and mapping XML)
*) added more restriction into XSD to prevent errors

0.17
*) fixed bug not accepting processingInstruction from 0.16
*) changed XSLT processingInstruction to allow client side processing also in MS IE both in dbsql2xml.java and servlet.java

0.16
*) changed retrieving of attribute and element values from XPath to DOM style - about 7 x speed up
*) changed class variables to object ones
*) changed HashMap to do type check (all are String) - no more warnings during compilation
*) added code for Statement per RowSet for MS SQL Server (other db such Oracle or HSQLDB) does not have suvh limitation and thus are several times (about 3x faster)

0.15
*) improved db statement algorithm - about 3x speed up
*) improved node addition resulted in speed up
*) changed internal code to be better readable
*) added timers to examplesOfUse.java
*) changed servlet example to be thread-safe
*) added new constructor to be "dbsql2xml" able to be called with persistent database Connection (mostly in servlets mode), which results in speed up

0.14
*) fixed bug in XSL-T and CSS processing instruction

0.13
*) added changeLog.txt

0.12
*) fixed first serious bug - different records were inside one element
*) fixed minor JavaDoc typo bugs

0.11
*) added comprehensive javadoc including examples into constructors
*) added validation of mapping XML  against XML Schema (dbsql2xml.xsd) inside "dbsql2xml" code

0.10
*) changed structure of the output XML document (mixed content no more); so there are overall changes in XSD, mapping XML and dbsql2xml.java

0.9
*) changed attribute "elementName" to "xmlName" and "elementValue" to "sqlName" in mapping files
*) changed Java code, XSD and examples due above change

0.8
*) fixed bug for unique in XSD
*) added build batch file included

0.7
*) added dbsql2xml.xsd XML Schema for validation mapping files
*) changed "dbsql2xml" code due XSD validation
*) changed mapping XML examples due XSD validation

0.6
*) added check for input parameters causing errors mostly in servlet mode
*) changed servletExample.java to accept GET parameters
*) changed Exception report to standard output with name of method, which throws it

0.5
*) added servlet example
*) changed preparation for better Exception handling
*) added String output is arbitrary in UTF-8 (so all outputs are now in UTF-8)

0.4
*) added mapping and flat XML mapping files
*) added "exampleOfUse.java" with 8 outputs

0.3
*) added output into File
*) added output into System.out
*) added output into String
*) added output into Document
*) added examplesOfUse.java with examples of use of all above output targets
*) updated javadoc (but still about nothing)

0.2
*) added JavaDoc (but nothing there yet)
*) changed global variables to be read from constructor and mapping XML file
*) changed "dbsql2xml" is now CLASS usable in other Java programs
*) changed much improved comments in source code
*) added test.xml to show how to use "dbsql2xml"

0.1 
initial release