Implement MAC lookup (#68)

* Implement MAC lookup

* Refine error processing

* Use long to store MAC consistently

* Link back to macvendors.co

* Undo some havoc

* Do not show mac spans for TV

* Show MAC and IP in a consistent order

* Add IP spans by ipinfo.io

* Add SpanFormatter

* Fix IPv6 ipinfo.io link

* Refine SpanFormatter

* Fix pressing the link

mobile/src/main/res/layout/listitem_interface.xml

@@ -41,6 +41,7 @@
                 tools:text="wlan0"/>
 
             <be.mygod.vpnhotspot.widget.AutoCollapseTextView
+                android:id="@+id/text"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:text="@{data.text}"