GUI: Enable 'warning' severity implicitly
astyle formatting
Fixed #4572 (Analysis failed: sizeof final)
Fixed #4560 (false positive: (error) Uninitialized variable: s)
Fixed #4569 (False Positive: Uninitialised variable)
add return value to test case
Travis: set notifications
#4566 implemented new check: redundantGetAndSetUserId on posix systems