Addressbook doesn't use two columns yet

TODO

 # Fixes
 
-- Better addressbook column widths
+- Better twopane column widths
     <zzz> on the i2ptunnel and addressbook pages on the tablet, the columns are too skinny, they aren't as wide as the tab
     <zzz> only a few addressbook entries wrap but on i2ptunnel everything is wrapped and most of the screen is empty
 

app/src/main/java/net/i2p/android/router/addressbook/AddressbookActivity.java

@@ -37,7 +37,7 @@ public class AddressbookActivity extends I2PActivityBase
 
     @Override
     protected boolean canUseTwoPanes() {
-        return true;
+        return false;
     }
 
     @Override