Huge refactor for better maintainability

mobile/src/main/java/be/mygod/vpnhotspot/manage/ManageBar.kt

@@ -0,0 +1,24 @@
+package be.mygod.vpnhotspot.manage
+
+import android.content.ActivityNotFoundException
+import android.content.Intent
+import android.support.v7.widget.RecyclerView
+import android.view.View
+
+object ManageBar : Manager() {
+    class ViewHolder(view: View) : RecyclerView.ViewHolder(view), View.OnClickListener {
+        init {
+            view.setOnClickListener(this)
+        }
+
+        override fun onClick(v: View?) = try {
+            itemView.context.startActivity(Intent()
+                    .setClassName("com.android.settings", "com.android.settings.Settings\$TetherSettingsActivity"))
+        } catch (e: ActivityNotFoundException) {
+            itemView.context.startActivity(Intent()
+                    .setClassName("com.android.settings", "com.android.settings.TetherSettings"))
+        }
+    }
+
+    override val type: Int get() = VIEW_TYPE_MANAGE
+}