Update load.py to read ISO Codes from ethnologue
Update load.py to read ISO Codes from ethnologue

Fixes #40

stefelisabeth/dplace,stefelisabeth/dplace,shh-dlce/dplace,stefelisabeth/dplace,D-PLACE/dplace,shh-dlce/dplace,D-PLACE/dplace,D-PLACE/dplace,shh-dlce/dplace,NESCent/dplace,stefelisabeth/dplace,shh-dlce/dplace,NESCent/dplace,D-PLACE/dplace,NESCent/dplace,NESCent/dplace