make mki18n.py wx-3.0 compatible and fix segmentation fault
$ python mki18n.py -m -v --moTarget=../locale --domain=Beremiz
No project directory given. Using current one: /home/beremiz/beremiz/i18n
Application domain used is: 'Beremiz'
Target directory for .mo files is: ../locale
../src/common/stdpbase.cpp(62): assert "traits" failed in Get(): create wxApp before calling this
Segmentation fault
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<font size="3">The PLCopen Editor saves and loads XML projects,<BR>accordingly to PLCopen TC6-XML Schemes.</font>