Allow us to determine if a maintenance window is active via API#384

Allow us to determine if a maintenance window is active via API.

My use case is as follows:
We have to maintain SLA’s with customers, however if we deploy new releases, bug fixes, security patches during maintenance windows they do not count against our SLA.

Allow us to determine programatically if a site is in an active maintenance window.

This would allow me to automate deployments – I could call the API, look for a field “mwActive: true” or something similar, and then proceed with the deployment, otherwise my script would fail with an error code indicating that the deployment would violate our SLA.