Default timeouts are incorrectly documented (and maybe dangerous per #114)

[samoconnor]

In client.jl and types.jl the default connect and read timeouts are specified as 10 s and 9 s.

The code currently uses 15 seconds as the default:

HTTP.jl/src/client.jl

Line 63 in 0bb79a7

const DEFAULT_OPTIONS = :((nothing, true, 15.0, 15.0, nothing, 5, true, false, 3, true, true, false, true, true))

Perhaps in the light of #114 it would be better for the default timeout to be Inf (which would result in the usual timeouts of the underlying TCP connection taking effect).

[xgdgsc]

What's the default timeout for now? Didin' t find in doc or code myself. Is it 0?

[quinnj]

function request(::Type{TimeoutLayer{Next}}, io::IO, req, body;
                 readtimeout::Int=60, kw...) where Next

so 60 seconds