Fixed Exception dialog disapearing after a view second when exception occurs during app startup.
Problem was caused by splashscreen timeout, wx closing averything else if there is no more main frame.
Changes:
- no more timeout for splashscreen
- use wx.App OnInit method to give first operation to mainloop, object are then now created in mainloop
- main loop is then created _before_ showing splash screen
- no more wxyield or wx processevent tricks needed to display splash screen
- exception handler not blocking anymore on dialog (callafter)
- because of mainloop being there before everything, exit must be called explicitely if exception caught during startup -> exit parameter in handle_exception + try/except around startup calls

UNTESTED ON WINDOWS

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all:

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	@echo "Please specify target 'source_list', 'template' or 'locales'"

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template:

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	@echo To generate translation template message.pot file:

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	python mki18n.py -p --domain=Beremiz

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locales:

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	@echo "Generate .mo files for all languages:"

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	python mki18n.py -m --moTarget=../locale --domain=Beremiz

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source_list:

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	echo @To "Generate list with source files: app.fil:"

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	find .. -name "*.py" -exec grep -q '_(' {} ';' -print -o -name "*XSD*" -print -o -name "*.csv" -print | grep -v '/build/' | grep -v '/pyjs/' > app.fil

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	echo "../plcopen/Additional_Function_Blocks.xml" >> app.fil

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	echo "../plcopen/Standard_Function_Blocks.xml"   >> app.fil

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.PHONY: all, template, locales, source_list