D27385: [RFC] Return error instead of aborting when receiving an unexpected answer

[Nicolas Fella]

nicolasfella edited reviewers, added: Frameworks, dfaure, meven; removed: 
kiokiio.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D27385

To: fifr, #frameworks, dfaure, meven, kiokiio
Cc: kde-frameworks-devel, LeGast00n, cblack, GB_2, michaelh, ngraham, bruns