DnfDrake new DNF frontend for OpenMandriva Lx Rock, ROME, Cooker

[rugyada]

@astragalo

Hello, after some time here is a new version with some new features.

In this version I focused on the possibility to use dnfdrake also in the absence of support for the language used by the system. From this version has been introduced a sort of safemode function that allows you to use the program in English if your language is not supported.

Basic support for Brazilian has also been added.
For full support and for other languages is essential the contribution of the community unfortunately we can not do everything all alone.

dnfdrake update will be soon published in OM repository.
For cooker, rolling and 4.2.