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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{

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    "url":"ws://127.0.0.1:8888",

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    "realm":"Automation",

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    "ID":"wamptest",

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    "password":"1234567890",

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    "key":"ABCDEFGHIJ"

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}