[Window]: move class definition to Protopack namespace
[Window]: remove Version
[Window]: move options inside the class definition
[Window]: better function names
[Window]: update file header comments
[Grid]: update file header comments
[Grid]: remove version property
apply change of the class name
[Draggable]: move class definition to Protopack namespace
[Draggable]: remove Version property
[Draggable]: move options inside the class
[Draggable]: update file header comments
typo
move class definitions into Protopack namespace
typo
move class definition into Protopack namespace
[Progressbar]: change class name
[Progressbar]: update file header information
[Progressbar]: remove version
[Progressbar]: move options inside the class