Fix the bnd ant task to fail the build if the builder fails.
Fix the bnd ant task to fail the build if the builder fails.

Previously the bnd task was not failing the build if there were any errors
in the bnd file or plugins were triggering errors. This is because the task
itself had no errors.  The builder was only checked for errors if the task
had errors due to conditional short-circuiting.

lostiniceland/bnd,GEBIT/bnd,mcculls/bnd,magnet/bnd,lostiniceland/bnd,psoreide/bnd,GEBIT/bnd,lostiniceland/bnd,mcculls/bnd,joansmith/bnd,joansmith/bnd,xtracoder/bnd,xtracoder/bnd,psoreide/bnd,magnet/bnd,psoreide/bnd,mcculls/bnd,magnet/bnd