content description added for all the buttons
Revert "content description added for all the buttons"

This reverts commit 612c2a943c3ea4ea22994e404fdbb3596f24fc8d.
Revert "Revert "content description added for all the buttons""

This reverts commit 0ad55470f9735bf0c8e4010d9c59391378bbba85.
content description added for all the buttons

Feedback activity is temporarily added in aware app project to simulate
test cases, will be removed when the system shows the proper feedbacks.