Configurable socket timeout

[Armageddonw]

Hello,

Currently we're having issue with this plugin when using options:
'Build only if Stash reports no conflicts' or 'Build only if PR is mergeable'.
It's related to the fact, that sending request 'client.getPullRequestMergeStatus' is taking more than 15 seconds (due to our internal hooks, that currently cannot be fixed).
This could be solvable by settings custom socket timeout, but it's not currently supported.

[nemccarthy]

Please raise an issue here; https://issues.jenkins.io/browse/JENKINS-63802?jql=project%20%3D%20JENKINS%20AND%20component%20%3D%20stash-pullrequest-builder-plugin

Offical repo is here; Please raise PRs here https://github.com/jenkinsci/stash-pullrequest-builder-plugin