Empty message condition
Revert "Empty message condition"

This reverts commit c05ec1169d6365a7237581969ae535c7375c632f.
Cleaning methods descriptions
Merge origin/2.0.0 into 2.0.0
Correct names of used classes
Collection readattribute
Fix bug #1706
Merge pull request #1705 from mruz/2.0.0

Correct names of used classes