Bug#856409: proguard: Please relax the dependency on proguard-gui

[Paride Legovini]

Package: proguard
Followup-For: Bug #856409

Even better: as most packages with a hard dependency on proguard really
depend only on the library, you could let this package Recommend: both
proguard-cli and proguard-gui. The current behavior is not changed, as
by default recommended packages are installed. Still, packages actually
depending only on the library are installable without bringing in the
cli and gui tools.

Thank you again,

Paride