Feature/repo

[prudhomm]

• Have you checked to ensure there aren't other open Pull Requests for the same change?
• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes?
• Have you successfully run the Feel++ testsuite with your changes locally?
• Have you written Doxygen comments in your contribution ?

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• better exception handling, improve reporting and add stacktrace, add support for exception handling  #1780
• write default repo config add default result repository configuration #1793
• add info when closing environment update closing feel++ environment #1798