Store trace on EBox::Exceptions::Base creation

It is now available at trace method
Updated translations from pootle
Updated translations for pootle
Improve stack in bug report of unhandled exceptions

+ Ask for trace object to non-handled EBox::Exceptions::Base
  exceptions in the UnhandledError middleware. This will gives us
  useful stack traces.
set definitive changelogs
set definitive 3.4 depends
Merge branch 'jacalvo/final-packages'
allow to not increment changelog in zentyal-package
set final version for language packs
fixed regresion on openchange deVDomainAbort
defensive code in _writeRewritePolicy
Merge pull request #1176 from Zentyal/ejhernandez/better-stack-traces

Better stack traces
Merge pull request #1177 from Zentyal/jag/oc-outgoing-domain-fixes

Fixed bad merge regresion in checking of outgoing domain on removal
fixed common ChangeLog
fix core ChangeLog
rpcproxy error message for when we have not external ifaces configured
Merge branch 'master' into rpcproxy-better-message