Update Nightscout the the actual verson

[GeorgLichter]

Dear Marcio,

would love to use your nightscout addon to run my own nightscout server.
I just installed your repo - everything worked but i saw that your version is outdated. Can you update your repo to the actual version 15.xx ?
Thank you !!

BR Georg

[marciogranzotto]

I'll try too a soon as I have some spare time!

[GeorgLichter]

thank you - I think this would help a lot :)