We need a plugin to handle <ant/> commands inside projects.
gump.plugins.java.ClasspathPlugin component for setting (BUILD|SYS|*)CLASSPATH properties on java-based projects
gump.model.Ant class for modelling <ant/> commands
GUMP-118 needs GUMP-119 done first.
GUMP-118 needs to make use of GUMP-117 stuff.
Might need more work (e.g. properties, etc.) but it is in place.