Some fixes

* New CALENDAR_PROTECTED more logical name and off by default.
* UTF-8 friendly encryption.
* Added %d/%m/%Y data style and moved the 3 more used to the top.
* Default Naming pattern, so a annoying message doesn’t appear the
first time you want to save the settings.
* HTTPS for network timezones updates.
Merge pull request #653 from pvieito/dev

Some fixes