Issue #17 #18: Mac addresses

[vendi95]

Fixes #17
Fixes #18

[luksan47]

Looks good, found only minor things.
Have not checked the JS, and did not try it out, will do later.

[steakhal]

This PR is quite long. Please next time consider multiple smaller ones.

[luksan47]

I don't really like the "loading" pop-up. Or at least, when the data loads fast, it makes no sense to blank the screen for a fraction of a second.
When it would be loading for ca. one second, it might be useful, but not as it is right now.

[vendi95]

I don't really like the "loading" pop-up. Or at least, when the data loads fast, it makes no sense to blank the screen for a fraction of a second.
When it would be loading for ca. one second, it might be useful, but not as it is right now.

We can modify the plugin later.

[luksan47]

I don't really like the "loading" pop-up. Or at least, when the data loads fast, it makes no sense to blank the screen for a fraction of a second.
When it would be loading for ca. one second, it might be useful, but not as it is right now.

We can modify the plugin later.

I think it's a must do issue, currently it's not too user friendly.