fixed a bug with incorrect handling of the BACK button/gesture

* the app can now load images: just go to the device gallery, select an image and send it to PhonoPaper;
* bug fixes.

* iOS 11 support has been dropped; now the minimum is 12;
* auto-repeat in the virtual (on-screen) text keyboard;
* bug fixes.

* iOS 9 support has been dropped; now the minimum is 11;
* INVERT option has been added to the app menu;
* bug fixes.

* user files are now available through the Files app;
* now you can click on the screen to start autofocus;
* bug fixes.

* camera selection and rotation (in the system settings);
* bug fixes.

* compressor has been added to the audio engine;
* bugs fixed.

bugs fixed.

* additional UI language: Russian;
* bugs fixed.

UI redesign + bugs fixed

fixed bug with device orientation

* ability to save codes to the photo gallery directly;
* bugs fixed.

bugs fixed.

* engine optimization;
 * bugs fixed.