Ability to choose APNS environment when pushing an APN

[nicnilov]

In pigeon version 1.6.0 it was possible to specify the apns environment (production or sandbox) when invoking APNS.push through the to: option. In the 2.0.0-rc.0 this seems to be no longer possible.

In our workflow there is a number of scenarios where we'd like to select the target APNS (production or sandbox) dynamically. A workaround is to have two pairs of the APNS adapters, so there is a voip and an app adapter per each of the two environments, four in total. While feasible, this is not ideal. Would it be possible to reinstate the to: option in the new pigeon versions?