main commit

Post-processing infrastructure
* remove interfaces with one implementation
* fix download resources with unknow length
* marquee style for ProgressDrawable
* "view details" option in mission context menu
* notification for finished downloads
* postprocessing infrastructure: sub-missions, circular file, layers for layers of abstractions for Java IO streams
* Mp4 muxing (only DASH brand)
* WebM muxing
* Captions downloading
* alert dialog for overwrite existing downloads finished or not.

Misc changes
* delete SQLiteDownloadDataSource.java
* delete DownloadMissionSQLiteHelper.java
* implement Localization from #114

Misc fixes (this branch)
* restore old mission listeners variables. Prevents registered listeners get de-referenced on low-end devices
* DownloadManagerService.checkForRunningMission() now return false if the mission has a error.
* use Intent.FLAG_ACTIVITY_NEW_TASK when launching an activity from gigaget threads (apparently it is required in old versions of android)

More changes
* proper error handling "infrastructure"
* queue instead of multiple downloads
* move serialized pending downloads (.giga files) to app data
* stop downloads when swicthing to mobile network (never works, see 2nd point)
* save the thread count for next downloads
* a lot of incoherences fixed
* delete DownloadManagerTest.java (too many changes to keep this file updated)

app/src/main/res/layout/download_dialog.xml

@@ -53,6 +53,12 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="@string/audio"/>
+
+        <RadioButton
+            android:id="@+id/subtitle_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/caption_setting_title"/>
     </RadioGroup>
 
     <Spinner
@@ -77,6 +83,7 @@
         android:text="@string/msg_threads"/>
 
     <LinearLayout
+        android:id="@+id/threads_layout"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_below="@+id/threads_text_view"

app/src/main/res/layout/mission_item.xml

@@ -2,7 +2,7 @@
 	xmlns:android="http://schemas.android.com/apk/res/android"
 	android:layout_height="wrap_content"
 	android:layout_width="match_parent">
-	
+
 	<RelativeLayout
 		android:id="@+id/item_bkg"
 		android:layout_height="wrap_content"
@@ -38,8 +38,8 @@
 				android:layout_centerVertical="true"
 				android:layout_marginRight="1dp"
 				android:src="@drawable/ic_menu_more"
-				android:scaleType="centerInside"
-                android:contentDescription="TODO" />
+				android:scaleType="center"
+                android:contentDescription="TODO"/>
 			
 		</RelativeLayout>
 		
@@ -51,8 +51,8 @@
 			android:layout_centerHorizontal="true"
 			android:scaleType="fitXY"
 			android:gravity="center"
-			android:padding="10dp"
-            android:contentDescription="TODO" />
+            android:contentDescription="TODO"
+			android:padding="10dp"/>
 		
 		<TextView
 			android:id="@+id/item_name"
@@ -60,12 +60,14 @@
 			android:layout_height="wrap_content"
 			android:layout_below="@id/item_icon"
 			android:padding="6dp"
-			android:singleLine="true"
-			android:ellipsize="end"
 			android:text="XXX.xx"
 			android:textSize="16sp"
 			android:textStyle="bold"
-			android:textColor="@color/white"/>
+			android:textColor="@color/white"
+			android:singleLine="true"
+			android:ellipsize="marquee"
+			android:marqueeRepeatLimit="marquee_forever"
+			android:scrollHorizontally="true"/>
 		
 		<TextView
 			android:id="@+id/item_size"

app/src/main/res/layout/missions.xml

@@ -1,12 +1,17 @@
-<LinearLayout
-	xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 	android:layout_width="fill_parent"
 	android:layout_height="fill_parent"
 	android:orientation="vertical">
-	
+
+	<include
+		layout="@layout/list_empty_view"
+		android:id="@+id/list_empty_view"
+		android:visibility="gone" />
+
 	<android.support.v7.widget.RecyclerView
 		android:id="@+id/mission_recycler"
 		android:layout_width="match_parent"
-		android:layout_height="match_parent"/>
-    
-</LinearLayout>
+		android:layout_height="match_parent"
+		/>
+
+</LinearLayout>

app/src/main/res/layout/missions_header.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="30dp"
+    android:layout_marginRight="16dp"
+    android:layout_marginEnd="16dp"
+    android:layout_marginTop="16dp"
+    android:orientation="vertical"
+    android:layout_marginLeft="8dp"
+    android:layout_marginStart="8dp">
+
+
+    <TextView
+        android:id="@+id/item_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:gravity="center_vertical"
+        android:textColor="@color/drawer_header_font_color"
+        android:textSize="16sp"
+        android:textStyle="bold" />
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="2dp"
+        android:background="@color/black_settings_accent_color" />
+
+</LinearLayout>