Experimental Anilist and Kitsu support (#586)

* Tracking tab with anilist support

* Rename MangaSync to Track

* Rename variables and methods to track

* Kitsu implementation

* Variables refactoring

* Travis fix?

app/src/main/res/values/strings.xml

@@ -80,7 +80,7 @@
     <string name="pref_category_reader">Reader</string>
     <string name="pref_category_downloads">Downloads</string>
     <string name="pref_category_sources">Sources</string>
-    <string name="pref_category_sync">Sync</string>
+    <string name="pref_category_tracking">Tracking</string>
     <string name="pref_category_advanced">Advanced</string>
     <string name="pref_category_about">About</string>
 
@@ -276,13 +276,14 @@
     <string name="confirm_delete_chapters">Are you sure you want to delete selected chapters?</string>
 
     <!-- MyAnimeList fragment -->
+    <string name="manga_tracking_tab">Tracking</string>
     <string name="reading">Reading</string>
     <string name="completed">Completed</string>
     <string name="dropped">Dropped</string>
     <string name="on_hold">On hold</string>
     <string name="plan_to_read">Plan to read</string>
     <string name="score">Score</string>
-    <string name="title_hint">Title…</string>
+    <string name="title">Title</string>
     <string name="status">Status</string>
     <string name="chapters">Chapters</string>