Add dose patch for clean exit on solver errors

Source:
https://gforge.inria.fr/plugins/scmgit/cgi-bin/gitweb.cgi?p=dose/dose.git;a=commit;h=3d9b403766e7741e84fb648dde7867dd6f869b38 
Closes #1202

When trying to reproduce by linking aspcud to /bin/false I got a worse problem though (full silent lock)