DBCollection findOne is not passing through projection parameter

[boughtonp]

As per the mongoDB docs, findOne has two optional arguments, criteria and projection:
http://docs.mongodb.org/manual/reference/method/db.collection.findOne/

The findOne method in DBCollection.cfc only passes in criteria, so trying to exclude the id value with a projection of {_id:0} doesn't work.

Updating the CFC to simply include/pass through the extra argument doesn't appear to change anything.

[boughtonp]

Oops, updating the CFC does work - I needed to pass in {'_id':0} to prevent CF uppercasing the key.

I'll send a suitable pull request later.

[JamoCA]

After upgrading a project from ColdFusion 9 (JRun) to 10 (Tomcat), I discovered that JavaCast() was required to set $sum parameters to "int" otherwise the result was always returned as 0.