pothos-library: topology to dot markup for debug
pothos-library: added set/get name to use in debug messages
Merge branch 'master' into dot_markup

Conflicts:
	pothos-library/lib/Framework/PortsAndFlows.hpp
pothos-library: dot fixes and escape name
pothos-library: use block name in the error message
pothos-library: added missing ctype include for isalnum
Merge branch 'dot_markup'