Add the ability to set request timeout options

[supreet321]

The default request timeout of Net::HTTP is quite generous (60 seconds). This PR allows users to tweak the timeouts, if needed.

[ixti]

Should we allow specifying timeout overrides on a per-method basis as well? Like setting default to be 10 seconds, but if we push multiple events – pass timeout override. I don't know how much valuable it is.