Lowered referenced Jenkins version from 1.574 to 1.480
Lowered referenced Jenkins version from 1.574 to 1.480

ChristianBecker/http-post-plugin,ChristianBecker/http-post-plugin,jenkinsci/http-post-plugin,jenkinsci/http-post-plugin,xautlx/http-post-plugin,xautlx/http-post-plugin