Merge pull request #328 from braille-systems/fix/327-no-octave

#327 remove octave marks

Merge pull request #326 from braille-systems/release/1.3.0

Release/1.3.0

Merge pull request #289 from braille-systems/release/1.2.1

Release/1.2.1

Merge pull request #273 from braille-systems/release/1.0.2

Release/1.0.2

Merge pull request #234 from braille-systems/release/1.1.0

Release/1.1.0

Merge pull request #213 from braille-systems/release/1.0.2

release/1.0.2

Merge pull request #188 from braille-systems/release/1.0.0

7.11 Release/1.0.0

Merge pull request #164 from braille-systems/release/0.6googleplay

release/0.6.0

Changelog:
- connected settings UI to settings
- added overflow menu in Theory
- fill step-by-step course until end (26 lessons)
- enable navigation through course (available from overflow menu)
- improve accessibility:
    - announce text in steps aloud
    - in steps with demonstration, tweak elements' labels
- miscellaneous improvements

Merge pull request #131 from braille-systems/release/0.5.0

Release 0.5.0

Changelog:
- added exit by voice command
- fixed navigation to Google Play on Android 8-10
- extended help menu, added instant speech synthesis (with TalkBack on)
- fixed text position in the course
- implemented settings UI (not functional)
- Braille Trainer: in practice - added reaction on joystick left/right

Merge pull request #105 from braille-systems/release/0.4.1

Release/0.4.1