Fixed issue: Fixed typo
Updated feature: Improved Mango::exists method
Updated feature: Mango Reader
Updated feature: Gleez Log_Mango v0.2.3

$message['time']) is no longer necessary
due to the fact that the _id field is instance of MongoId
and MongoId have getTimestamp method
Updated feature: Mango Reader
Merge pull request #514 from sergeyklay/master

Mango updates