Preferences with conductor (#792)

* Settings with conductor WIP

* Add downloads preference controller. Implement source/track login

* Improve settings controllers

* Backup settings controller

* Delete preferences xml

* Remove keys from xml

* PreferenceKeys is now an object

* Remove now unused dependency

app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/BaseController.kt

@@ -8,7 +8,6 @@ import android.view.ViewGroup
 import com.bluelinelabs.conductor.ControllerChangeHandler
 import com.bluelinelabs.conductor.ControllerChangeType
 import com.bluelinelabs.conductor.RestoreViewOnCreateController
-import com.bluelinelabs.conductor.Router
 
 abstract class BaseController(bundle: Bundle? = null) : RestoreViewOnCreateController(bundle) {
 
@@ -45,13 +44,4 @@ abstract class BaseController(bundle: Bundle? = null) : RestoreViewOnCreateContr
         (activity as? AppCompatActivity)?.supportActionBar?.title = getTitle()
     }
 
-    fun Router.popControllerWithTag(tag: String): Boolean {
-        val controller = getControllerWithTag(tag)
-        if (controller != null) {
-            popController(controller)
-            return true
-        }
-        return false
-    }
-
 }

app/src/main/java/eu/kanade/tachiyomi/ui/base/controller/ConductorExtensions.kt

@@ -0,0 +1,12 @@
+package eu.kanade.tachiyomi.ui.base.controller
+
+import com.bluelinelabs.conductor.Router
+
+fun Router.popControllerWithTag(tag: String): Boolean {
+    val controller = getControllerWithTag(tag)
+    if (controller != null) {
+        popController(controller)
+        return true
+    }
+    return false
+}