Pack latest kivy logs on exception

[overfl0]

Originally reported by: overfl0 (Bitbucket: overfl0, GitHub: overfl0)

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When an exception occurs, pack the logs from .kivy\logs that have a modification date in the last 24h to a zip file and copy it to some directory. Maybe .

Change the error message to link to the logs file and to encourage posting those logs along with the bug report.

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• Bitbucket: https://bitbucket.org/tacbf_launcher/tacbf_launcher/issue/142