changed current_time
changed current_time

The old **current_time** was the time when the **app.py** started, it never updates.

I changed the way it works, now it's actually the **current time**.

This should fix the **VOD link** for the pleblist and the **calendar** where it's used too.
(never noticed an issue for calendar, but the bot was always restarted every day)

![current_date](http://i.imgur.com/1qilU1T.png)

Tested it and works now for online streams with a video_url :radio:

*With this we can now use `{{current_time|localize|strftime('%A, %B %d %Y %H:%M:%S %Z')}}` to show the current time on the website, if we need this at some point.*

pajlada/pajbot,pajlada/tyggbot,gigglearrows/anniesbot,gigglearrows/anniesbot,pajlada/pajbot,pajlada/pajbot,pajlada/tyggbot,pajlada/tyggbot,gigglearrows/anniesbot,pajlada/pajbot,pajlada/tyggbot