includes the sizes of the sent project components in the transmision,
so the cloud backend can check if the whole of them have been
transmitted before comitting to the database
errors if the serialized project data is corrupt and cannot be parsed
as XML, addresses #203, #200, #171. I'm hoping that this might provide
us a clue whether the corruption is happening in Snap's marshalling or
on the backend side
for new "scripts pic..." feature on the scripting area's context menu.
Also pushed up version dates for new beta release, and added
SnapManual.pdf to the help folder
* new entry in the ScriptsMorph's userMenu lets you export a picture of
all scripts, including comments.
* place sticky comments on World layer on dragging their anchor block,
fixes both #8 and #18
* additional settings for developing the backend