make output tree writing work for lazy reads
Allow file configuration giving only the filename
Make text.exe depend on LIB to  avoid problems with parallel build
cleanup glbal .gitignore
Fix SIGCHLD signal handling in dra_local
Add documentation; make event 'stop' a framework-wide identifier; add 'stop_unless' module
Various improvements for the zsvanalysis: filtered duplicates in runb, adapt to framework changes, new plotting of mistags