Ref #142

Ref #127

It's always windows.

Dunno how I missed that.

Fix #128

Ref #122

Fix #88

Ref #112

If the sounds path is unset in the settings and a “sounds” directory
doesn’t exists in the user’s data directory, install the sounds files
and set the settings value accordingly

 If none of the gameboard images is set and and the user’s data
directory doesn’t contain a “zonebg” directory, create the directory,
copy contents from cockatrice’s app bundle and sets the config
accordingly.

Without this change, make install and make package would require “sudo”
under osx

If the sounds path is unset in the settings and a “sounds” directory
doesn’t exists in the user’s data directory, install the sounds files
and set the settings value accordingly

 If none of the gameboard images is set and and the user’s data
directory doesn’t contain a “zonebg” directory, create the directory,
copy contents from cockatrice’s app bundle and sets the config
accordingly.

Better error message and allow the user to still connect

Ref: #102