refuse to publish when in /dev/*/source

[timrdf]

http://tw.rpi.edu/web/inside/machine/gemini

https://github.com/timrdf/csv2rdf4lod-automation/wiki/CSV2RDF4LOD-environment-variables-%28considerations-for-a-distributed-workflow%29

motivation: avoid "unknown/difficult to trace publishing"

example: tim accidentally published from gemini:/srv/logd/data/dev/lebot/source/data-rpi-edu/research-centers