Improve error reporting

Improve the web api errCB printing to the log and make sure it is also called
for errors in the DOMPostProcessor.

Change-Id: I6af30a54e5cac3fe5dca29486168828982348683
Ugh! Fix a crasher when dsr is missing (bug from c28f1370)

ja:イグエーニャthat crashed during RT testing now fixed.

Change-Id: Ib875b48b4de3251e9c875b5dcc33df9f69e1835d
Merge "Improve error reporting"