Added some actual data generation for testing against in the Aggregation Framework.
Added tests for findOne and aggregate.
Added Aggregate Function mapped to aggregate on the MongoCollection.
Fixed logic to create exactly 10k records.
Some Aggregation Tests.
Merge branch 'master' into aggregate

Conflicts:
	tests/EpicMongoCollectionTest.php
Merge branch 'aggregate'

Conflicts:
	tests/EpicMongoCollectionTest.php