PopularityContest: Transmit collected data

[Sewi]

From ​http://mail.perlide.org/pipermail/padre-dev/2009-October/001263.html

• The Plugin should be auto-enabled always on new installations
• The enabled Plugin should collect, but not send data without user's

approval.

• Once a report should be send, the user must be asked with options "send

once", "auto-send always", "don't send once" and "send never"

• "auto-send always" is changed back to "ask user" if we add data which

would be send, the ask-dialog should show a list of what was added

• Report data should be cached on disk at Padre exit

The "data" being send should be transparent as #730 will force a change of the current data structure.