Refactored: Moved setTexts() to ListBaseAdapter.
Refactored: Made BookListAdapter and ChapterListAdapter standalone classes.
Improved: Scrolled to last read book at start-up.

Also brought the minimun supported SDK level to 8.
Changed: Moved "download more translations" to action bar.
Improved: Loaded book names in a worker thread for BookSelectionActivity.
Improved: Several minor improvements to BookSelectionActivity.
Improved: Made checking of "has installed translations" faster.
Updated: Corrected current application version.
Improved: Better names for constants.
Refactored: Inlined the loadLastReadTranslation() method.
Fixed: Removed unnecessary members from book list adapter and chapter list adapter.
Refactored: Made SearchResultListAdapter a standalone class.
Changed: Used translation short name as title of SearchActivity for consistency.
Refactored: Moved text search functionality to TranslationReader.
Improved: Made several improvements to SearchActivity.
Fixed: Removed several unused constants.
Refactored: Made TranslationSelectionListAdapter a standalone class.
Improved: Made translation list loading for TranslationSelectionActivity asynchronous.
Refactored: Put translation removal to a separate method.
Improved: No longer load book names if selected translation is not changed.