Add connection type to $env

[gliechtenstein]

We could detect if it's wifi or 3g or lte, etc. and render completely different versions of an app if we wanted. Just need to add another attribute to $env

[maks]

could this also include 'offline' to allow detecting that state too?

[gliechtenstein]

@maks yes, i can't confirm util i try but i presume that should be feasible too!