Usage:
ant <TARGET> -D<OPTIONS>
where TARGET is:
build (default): builds all binaries, doc and distributions.
clean: removes all generated files and directories.
clean-build: cleans then builds the project
help: prints a usage message (this message).
Other values for TARGET are:
devbuild: produces binaries and javadocs.
javadoc: produces javadocs.
test: runs sanity tests. (not currently available)