Implemented current/reset/rewind/valid; Deleted test/mongocursor-constructor.php and moved all cursor test cases to mongoCursorTest.php
Set started_iterating to true after constructing cursor in rewind(); Fixed minor variable reference issue in mongoCursor.php; Added test for adding options after started iterating (which should throw exception)
cleaned up unused line
adding private php variables read_preferences and slaveOkay and functions manipulating them
Merge branch 'gh26-mongocursor' into gh7-mongotests
Merge pull request #27 from 10gen-labs/gh26-mongocursor

Implemented current/reset/rewind/valid; Deleted test/mongocursor-constru...
Merge branch 'gh7-mongotests' of https://github.com/10gen-labs/mongo-hhvm-driver into gh7-mongotests
Added more MongoCollection + MongoDB functionality
Completed MongoDB functionality besides getting collections. Completed MongoClient functionality besides native fns. Updated README to reflect version of libmongoc.
Updated README + more changes to mongoClient+DB
Merge branch 'gh7-mongotests' of https://github.com/10gen-labs/mongo-hhvm-driver into gh7-mongotests
Merge pull request #29 from 10gen-labs/gh7-mongotests

WIP: More core class functionality in PHP + various updates