Added buildtools.xml for building the build tools jar file.
Moved source for ant tasks into src/org/apache/fop/tools/anttasks
Set up dual support for Xalan 1 native and Xalan 2 JAXP1.1 transform interfaces.
git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@193970 13f79535-47bb-0310-9956-ffa450edef68