serre SVN

Don't capitalize member function

Get back to our original schedule (changed a week ago).
Rate limits on the sunrise/sunset handling.

Make the date format less ambiguous

Fix a bug with sunrise hour update : the condition could never be true, so we never actually updated.

Detect event of permanent failure to fetch sunrise (e.g. due to certificate mismatch).

Move stuff around at startup so GPIO settings preceed getting network and time.
More consistent status report (times together, visually more understandable source).

Move GPIO configuration, and set to 0, to before time query.

Bugfix : call RunDailySchedule on time sync.
Some debugging tweaks, disabled for normal operation.

Remove "overrule" variable.
Tweak some debug output.
Document use of global variables.

cleanup