On a fresh installed system, there is no valid setup of ffuplink. So
we disable this interface, till it's configured by some uplink-preset.

The default of this interface is disabled, so we must enable it
after it's setup.

The ffuplink interface is disabled by default on a fresh install.
During the course of running the wizard, the user must select if
they want to share their internet connection or not.  If the user
decides to share their internet, then the ffuplink interface shall
be enabled (setting disabled=0).

This addresses freifunk-berlin/firmware#603

…cted"

This reverts commit 1aebe45, as it puts code
related to "shareInternet-Settings" in the wireless.lua-file.

When the user is on the "shareInternet"-page he must have selected to share
his uplink. As he wants to share the uplink, we enable this interface here.

This reverts commit a548568, as we enable the
ffuplink-interface in the ffwizard when reachjing the "sharenet"-page. On
manually configured routers this interface must be enabled in the configuration.

this is not needed anymore, sine we use git-autoversioning on master.