github70: started replication to multiple targets
github70: fixed tests in test_oplog_manager.py
github70: python3 fixes
github70: extra urls imply creating more doc managers of previous type
added test for doc manager creation
change option help text
github70: removed some cruft
github70: catch autoreconnect in dump_collection
github70: reorganized upserts/deletes to multiple targets
github70: added new rollback tests for single + multiple replication targets
github70: more python3 fixes
github70: more python3 stuff
github70: don't use deprecated imp.load_source in python3
github70: added old CLI options back
github70: much better error handling in dump_collection
github89: fix how documents are formatted in solr doc manager
Merge pull request #93 from lovett89/github89

github89: fix how documents are formatted in solr doc manager
Merge branch 'github70'

Conflicts:
	mongo_connector/connector.py
	mongo_connector/oplog_manager.py
	tests/test_elastic.py
	tests/test_oplog_manager.py
	tests/test_solr.py