0.1.2 and new user-friendly API!

Command cursors are here! \o/

Renamed all the getters of WriteResult to make more sense, and fixed a failure in libmongoc when replacing entire documents. For more details, see the RELEASE-0.1.2 file included in the project.

We've also started working on a PHP userland API, which aims to provide more useful bindings for applications (over the raw driver methods). The new package, which will have its own repository, is developed to be compatible to the new MongoDB CRUD Specification for drivers.