v1.5.4

Add quit button on challenge screen

v1.5.3

Add Accessibility Service

v1.5.2

- Back button -> Do nothing

- Translation to Japanese
- Code Improvement

v1.5.1

Merge remote-tracking branch 'origin/master'

v1.5.0

Msbelaid/refactor challenges, add minimal difficulty selection (#34)

v1.4.1

Msbelaid/non integer input crash #37 (#38)

v1.4

prepare for Google Play, translate to fr, ar

v1.3

Increment version

v1.2

update link to icon

v1.1

First Release