added a bulk_upsert function
started tests for bulk_upsert
added tests for bulk_upsert
added more tests to bulk upsert and updated docs
100% test coverage
updated the README
updated version
merged master
Merge pull request #13 from wesleykendall/develop

added bulk_upsert function
Merge pull request #14 from ambitioninc/develop

Added bulk_upsert function to manager utils