Drop obsolete Dm-Upload-Allowed field.
Use current canonical URI for VCS-* fields.
Fix debhelper dependency.
Update debian/watch file.
Imported Upstream version 0.4.9
Merge tag 'upstream/0.4.9'

Upstream version 0.4.9
Drop all patches (all accepted upstream).
Bump Standards-Version to 3.9.4 (no changes needed).
Switch to debhelper 9.
Update Homepage field.
Rewrite copyright in copyright-format 1.0.
Drop postbuild command.
Release 0.4.9-1 to Debian unstable.
Update debian/watch file.
Imported Upstream version 0.5.0
Merge tag 'upstream/0.5.0'

Upstream version 0.5.0
Use Makefile for installation.
Bump Standards-Version to 3.9.5.
Release 0.5.0-1 to Debian unstable.
Imported Upstream version 0.5.1