Revision 13135: 57_CALVIEW.pm: -new attr datestyle ->enables new ...

[System]

Revision 13135: 57_CALVIEW.pm: -new attr datestyle
               ->enables new ...

57_CALVIEW.pm: -new attr datestyle
               ->enables new readings for start/end ISO8601 formated
               ->added help-text for attr datestyle

Source: Revision 13135: 57_CALVIEW.pm: -new attr datestyle
               ->enables new ...