The LMB option for Text menu was not working fine after I change the
way to display the dialog. It's OK now.
It was also added the font intialization to wings_dialog module. By
now it has no effect over the dialog. So, as is not possible to test
well, the font name continue to store the full font file path. In
the future it make more sense store the face name used to initialize
the font dialog.

OBS: The code still need to be tested under Linux and OSX.