Connecting HUD to a11y service
Merge branch 'develop' of https://github.com/idrc/tecla-framework into issue-80
HUD buttons and properties tweaks
Move default values to resource files
Plugged HUD back into A11y Service. Solves #80
Merge pull request #117 from jorgesilva/issue-80

Plug HUD back into a11y service, Fixes #80