src/conf.py: Plugin isn't important plugin
src/conf.py: Plugin isn't important plugin

See https://github.com/ProgVal/Limnoria/pull/677#issuecomment-44134309 & https://github.com/ProgVal/Limnoria/pull/677#issuecomment-44140276 .
ProgVal/Limnoria-test,ProgVal/Limnoria-test,Ban3/Limnoria,Ban3/Limnoria