* Saving to SD working
* Rename imagePath to uri
* Handle android < 21
* Minor changes
* Separate downloader from the manager. Optimize folder lookups
* Persist downloads across restarts
* Fix for #511
* Updated ReactiveNetwork. Add some documentation
* More documentation and minor fixes
* Handle persistent notifications. Other minor changes
* Improve downloader and add documentation
* Rename pageNumber to index in Page class
* Remove unused methods
* Use chop method
* Make sure dest dir is created
* Reset downloads dir preference
* Use invalidate options menu in download fragment and fix wrong condition
* Fix empty download queue after application restart
* Use addAll method in download queue to avoid too many notifications
* Inform download manager changes
* Add very basic "Add to homescreen" action in manga info fragment.
* Fix open from homescreen opening current manga (if a manga is open).
Code cleanup.
* Improve fix for "Opening from homescreen opens currently open manga if a manga is currently open" and fix "Going back to the main app via a Manga opened through a shortcut repeats the launcher open animation".
* Implement custom icons, add star icon and optimize some things.
* Remove Tachiyomi and custom image icon types.
* Move icon creation task into an observable.
Added some extra error handling.
* [WIP] Custom color filter for reader
* Improvements
* temp image to prevent build error
* Shift all the bits
* Some improvements. Removed DiscreteSeekBar
* Improvements
* API 16 + fixes
* Reduced lag. Fixed brightness value being reset to 0
* Small fixes
* Complete auto updates checker
* Use GcmTaskService for the periodical updates checker
* Persist task across reinstalls
* Hide setting instead of disabling
* Minor refactor
* Added in the ability to view the library as a list
* reverted LibraryAdapter and renamed libraryToggleViewEvent to LibraryToggleViewEvent for consistency
* removed LibraryToggleViewEvent and directly subscribed to option change
* fixed the toggleView subscription
* Made the library list item layout more compliant with material design
* Changed unread text style and removed background
