short parameter names for all functions/constructors

[MartinNowak]

Just saw that the signature of free functions are shown with their (referenced?) parameter names in the overview, e.g. socketAddr(addr, port) (https://martinnowak.github.io/io/std/io/net/addr.html). Would be cool if that was the default for all functions and constructors, as it allows to quickly answer some questions without going to that entity's page.

[dayllenger]

Looking not bad.