Split PHP-1085 tests for socketTimeoutMS via MongoClient and methods
Merge pull request #710
Merge branch 'v1.5'
Do not match exact byte sizes in maxWriteBatchSize tests

These tests care about the splitting of batches around the maxWriteBatchSize limit (i.e. 1000). They do not need to assert an exact value for the byte size of the serialized BSON.
Merge pull requst #707
Merge branch 'v1.5'