Change member initializer to prevent gcc 4.6 bug that the list-initialization does not work for ref members (50025)
using namespace celix::dm;
-DmActivator::DmActivator(DependencyManager& m) : ctx{m.bundleContext()}, mng{m} {}
+DmActivator::DmActivator(DependencyManager& m) : ctx{m.bundleContext()}, mng(m) {}
DmActivator::~DmActivator() = default;
