[core] remove fail when default config file is missing
Merge pull request #224 from paulfitz/fromfail

[core] remove fail when default config file is missing
Quote path to avoid possible issues with filenames with spaces
tweak refcounting of shared libraries to match example
forcing yarpbroker to close the communication port after each intraction with the yarprun
quick fix
Merge branch 'master' into yarprun_log