* NEW: A new class ReportMargin that inherit ReportPadding
* BUG: Size parsing now support null value (set it internally to "0cm")
* OPT: Many code cleaning an reorganisation.
* NEW: ReportView is based on DocumentView now.
* NEW: ReportMargin and Spacing work together.
* OPT: A value without unit is a pixel value.
* NEW: Better support for shadows (css like)



git-svn-id: svn://localhost/gambas/trunk@6828 867c0c6c-44f3-4631-809d-bfa615b0a4ec