added infinite commit scraping option in github:commits rake task
added infinite commit scraping option in github:commits rake task

opensourcewatch/curation-scraper,opensourcewatch/curation-scraper,opensourcewatch/curation-scraper,githubs-google/curation,githubs-google/curation,opensourcewatch/opensourcewatch,opensourcewatch/opensourcewatch,opensourcewatch/opensourcewatch,githubs-google/curation