For calculating Timedifferences (12h, 7d, 30d) there is reused the
Variable "now". Indeed the Substractions are cumulated in the Variable,
resulting in incorrect Timedifferences.
- use moment() instead of Variable "now"
- rename Timevariables to be more speaking
- introduce a Timevariable f0 for "now"
- add Seconds to Timeformat to be more intuitive to ISO8601-Format
- add GET-Variable "to", to be editable more easy in Addressbar
- resort GET-Variables "from" and "to" to Front, to be editable more easy in Addressbar