enable possibility for https and avoid cleartext password

With `5d44214` you're able to use nemes with https.

With `f4a0f9c`, passwords have to be saved as sha1 hash. But at least, this is not safe too(!!), but maybe more safe than cleartext passwords...and it was very very easy to change.
I don't know much about php hashed. Something like sha512+salt would be much better.

cheers!