build: bump libbson requirement to 0.4.0.
doc: add Jason to AUTHORS.
doc: update README
build: add mongoc-stream-private.h to makefile.
build: release 0.90.0!
post-release bump.
docs: update README.
mongoc: only allow including <mongoc.h>
doc: update fsync() docs for write concern.
tests: ensure clone returns matching documents.
cursor: synthesize COMMAND_NOT_FOUND on mongod < 2.5.
sorting for gridfs chunks

We have to provide an $orderby for the gridfs chunk query, we've been
getting lucky thus far
move a typedef after the enum it wraps

pedantic
batch_size and limit implementation

Added batch_size and limit params to every function that creates a
cursor.  Actually implemented limit functionality in the cursor as well
(with correct threading for numberToReturn in rpc calls
cluster: try to reuse existing connections during replset reconnection
doc: update README.rst.
examples: remove useless index-source example.
uri: add mongoc_uri_get_mechanism().
sasl: start plumbing in sasl support.

This includes SASL PLAIN authentication. GSSAPI to come soon.
build: bump libbson requirement to 0.4.1.