Merge pull request #25 from texuf/master

drop and find_one
Merge pull request #26 from texuf/master

more support for collection.find()
#28: support $set for subdocument properties
Ignore flycheck files (emacs)
Fix support for  on nested documents
test that shows a failing "upsert"
#15: handle upserts with special operators
Acknowledgements
Implement find sort and cursor sort with list. Also, stub out collection ensure_index and cursor close.
Support Map-Reduce
README udpate
simplify changeset
Merge pull request #1 from scottsexton/add-map-reduce

Add map reduce
fix for python3
Add tests for map-reduce using query and limit
Merge pull request #2 from scottsexton/add-map-reduce

Add map reduce
Update tests for python 3
Increment version due to new requirements to support map-reduce
Fix install order to work with travis CI build plan
pymongo requirement is in setup.py now