Merge pull request #354 from sergeyklay/master

Minor fixes
Merge pull request #355 from sergeyklay/master

Minor fixes and additions
Merge branch 'master' into mongodb
Updated feature: Added User ID support to file log writer
New feature: Added all log writers
Updated feature: Amended PHPDoc
Merge pull request #356 from sergeyklay/master

Log writers additions
New feature: Added Mango::getGridFS
Fixed issue: Removing not needed classes from system/log
Fixed issue: Removed fixed module
Fixed issue: Fixed PHPDoc
Fixed issue: Removed classes/gleez/log/writer
New feature: Added MongoDB log writer
New feature: WIP. Added Gleez_Mango_Collection
Merge branch 'master' into mongodb
Fixed issue: Removed not needed exception class
Fixed issue: Fixed typo, clean code
Fixed issue: Removed not needed Mango_Exception support