Disable code signing for the unit test target.

- Forgot that the previous time.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Fix question view controllers being pushed twice.

- The question and questions view controllers were being given the same
identifier as the comments view controller and was thus being pushed
twice.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Change so Travis does not send notifications by email.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>