builder: debug messages for creating source-for-target confs
conf/expr: importing logger now
dirscanner: make paths relative to smroot as soon as possible
tests/builder: no longer convert user's paths, expr does that.
tests/path: disabled in_smdir tests, new tests for smpath
util/path: prefixing relto to path, making it relative to smroot then
tests/builder: cancel build if not all wanted sources were found
examples: added binary and library pysmfile samples