Merge pull request #13 from tsander/GridFS

Tests for GridFS, and switch to InputStream
Added test for insertion of object with pre-created ObjectId.
Test updated
Bleeding_edge changes in libraries. Samples are working, bson tests broken, DB tests mosly pass (GridFS including). Use only with Dart  0.1.2_r17005 and upper.
All tests and examples run successfully on sdk revision  17072.
M3 ready. Run on version 0.3.1.1_r17328
rename readme to uppercase
rename readme to uppercase
Change for version 0.1.2_r17691
Merge remote-tracking branch 'origin/master'
Add extraData support
work with 0.3.2.0_r17657
Fixed bug in limit functionality
v0.0.14
Adds upsert flag for DbCollection.update()
Merge pull request #16 from justinfagnani/justin-upsert

Adds upsert flag for DbCollection.update()
M3 related clean-ups. Networking upgraded to stream based API. GridFS does not work yet.
restore check
Bug fixing after upgrade to stream base API in networking
Bugfix for corner case with incomplete BSON header int