Moved TeclaAccessibilityService reference assignment to end of init.
Reverted to home button on top left of HUD.
Merge pull request #255 from ericwan78/issue-253

fixes #253
Merge pull request #256 from ericwan78/issue-254

fixes #254
Merge branch 'develop' of https://github.com/idrc/tecla-framework into develop
Update icon and full-screen feedback background