Bug#797448: dose3 is unfit for transitioning to testing

[Johannes Schauer <josch@debian.org>]

Source: dose3
Version: 4.0-1
Severity: grave
Justification: renders package unusable

Hi,

this is a blocker bug to prevent dose3 4.0-1 from transitioning from
unstable to to testing. There are several problems:

 - dose-builddebcheck changed some command line arguments but:
    * there is no NEWS.Debian informing users about this change
    * the exit code for wrong command line arguments is wrong (should be
      greater or equal to 64) - this requires an upload of extlib 1.7.0
 - the META file shipped by libdose-ocaml-dev omits the new Versioning
   module and thus breaks all software build depending on any dose3 module

cheers, josch