addresses an issue with loading a conf file
addresses an issue with loading a conf file

This commit addresses an issue where loading a specific conf file would
still try to autoload from the search path.  Specifying the conf file
will now only load the specific file.  Note: this only applie to
explicitly calling load_config.

devtodor/pyeapi-py3,arista-eosplus/pyeapi,mitchmahan/pyeapi,mzbenami/pyeapi,SivagnanamCiena/pyeapi,jerearista/pyeapi