Merge branch 'bson-decoder-encoder' of https://github.com/10gen-labs/mongo-hhvm-driver into gh37-integrate-bson-handling
Integrated encodeToBSON into rewind / insert / remove / update
Merge branch 'master' of https://github.com/10gen-labs/mongo-hhvm-driver into gh37-integrate-bson-handling
Merge pull request #39 from 10gen-labs/gh37-integrate-bson-handling

Integrated encodeToBSON into rewind / insert / remove / update