It is helpful to have the source files which are the basis of the binary release in a src.zip.

This can be used in Eclipse user defined libraries to add a source attachment. This allows to browse the QF/J source code
from the referencing code in the project (in read-only mode).

The src.zip should contain the src/quickfix directory merged with output/ant/src-generated/quickfix which contains the FIX classes generated
from the FIX4x.xml specs. The top-level directory should be "quickfix".