Headphone controls and API 30

Support on-headphone controls (start/stop/volume only).
Changes for API 30 - minor behavioral changes: see web page.

German Translation

Add German translation from @renarena.
This version is currently only available as an .apk here, not via the Store, until it can be reworked for Android 10.

QR-code support

Minor changes allowing QR-code installation from Play Store.
(Mostly a change to the website.)

Better use of app pinning, remember prior downloads dirs

Keep a history of (unique) directories used as downloads dirs. Access that thru a popup triggered by clicking the DownLoad dir item in the Add Books page. Clicking on a history entry changes directly to that entry. New entries are added from the popup, and entries can be deleted from there by clicking on a delete item entry.

This goes with a web page change on how to install downloadable books from OverDrive and rbDigital and the long path to the directory OverDrive uses for that.

The emulator doesn't behave exactly the same as real hardware when doing Application Pinning for API 21-27. Get the change in 1.1.3 working for working for those APIs.

Fix low-contrast text when Title Edit cannot proceed due to an illegal name.

Minor bugfixes.

Stop Points, High-Contrast, Update notification (bugfix), Android Q fixes.

Fix a number of accessibility issues and some potential crashes shown by automatic testing.
Add a hint on the SECOND time playback is started about the existence of the on-screen volume and speed controls.
Don't do "Button Delay" at startup and when returning from Settings.
Make Simple Kiosk work on Android 10, although it's not recommended because it still is (unfixably) ugly. Make App Pinning more attractive by getting rid of the "Got It" message on Pie and above. Pinning (where available) is the best choice if not using Full Kiosk. Update web page to reflect these changes.
Fix URLs in dialogs to be clickable. Housekeeping in handling the path to the website. Improve error handling if connection to Samples Download website fails.
Fix unzip of books when zip file doesn't contain explicit directory entry. Handle file renumbering when more than 100 files, separate handling of audio files and directories to avoid renumbering unnecessarily.

Stop Points, High-Contrast, Update notification (bugfix)

Bugfix: hang if playback started before size computation completed.

Stop Points, High-Contrast, Update notification (bugfix)

v1.1.1

Fix proguard

Stop Points, High-Contrast, Update notification

Retain points where playback stopped, access them from playback screen with 2-finger swipe.
High Contrast mode.
Version update notification machinery.
Housekeeping

Samples Download Fix

Minor fix to samples downloads.

First Aesop Release

First release of Aesop Player. See the CHANGELOG for details.