* Update addons structure. Make Y2038 addon works.
All addons are now located in same directory, where cppcheck-gui is
looking for them.
Y2038 addon has been updated to latest cppcheck version. Output is same
as 303622f01c commit as it described in
README: 303622f01c/addons/y2038/README.
* Clean up .travis.yml
* Update travis.yml paths.
* misra.py: Bring back -P argument for backward compatibility
* Fix paths
* Normalize dumpfile paths tpo cppcheck format
* Fixup 3 test.
* Add arguments regression test.
* Fixing travis build
Carl-Oskar Larsson
Ken-Patrick Lehrmann
Francesc Elies
Georgy Komarov