Updated feature: Gleez Mango v0.3.6

Added default WriteConcern option for new client driver
Updated feature: Gleez Mango_Collection v0.5.0

+ Updated Mango_Collection::safeUpdate - moved $upsert
  and $multi params to $options, fixed 'w' handling option
+ Fixed Mango_Collection::safeRemove - fixed 'w' handling
  option.
+ Added Mango_Collection::immortal - Sets whether this
  cursor will timeout
+ Added Mango_Collection::slaveOkay - Sets whether this
  query can be done on a slave
+ Added Mango_Collection::snapshot - Use snapshot mode
  for the query
Updated feature: Changed default cache collection name
Fixed issue:  should consist of an array of strings
Updated feature: Gleez Cache_Mango v1.1.0

+ Removed redundant methods
+ Fixed update issue
+ Changed default collection name
+ Fixed PHPDoc
+ Disable notices for unserializing
+ Mango_Collection::delete used safeRemove instead safeDrop
Updated feature: Mango Reader