db.collection.update frontend
db.collection.update backend
db.collection.update tests
Throw error on 4th argument when using options object for update
Add documentation for update options object
Ensure query and update are set
Check that no matching document exists
Move test request functions into appropriate TestCase class
Merge pull request #149 from rcchan/db.collection.update

Db.collection.update
Merge pull request #151 from rcchan/test-reorg

Move test request functions into appropriate TestCase class