Return std::size_t at Event::connected_signals
Return std::size_t at Event::connected_signals

And size_t -> std::size_t

Bablawn3d5/entityx,drewet/entityx,jarrettchisholm/entityx,jarrettchisholm/entityx,jaynus/entityx,alecthomas/entityx,jaynus/entityx,alecthomas/entityx,alecthomas/entityx,drewet/entityx,arvidsson/entityx,Bablawn3d5/entityx,arvidsson/entityx,jaynus/entityx,arvidsson/entityx,jarrettchisholm/entityx,drewet/entityx,Bablawn3d5/entityx