Added log output if we can not perform out work.
Use Maven Release Plugin 2.5 as described here: https://groups.google.com/forum/#!topic/jenkinsci-dev/qkmbl3HrYgk
[maven-release-plugin] prepare release http-post-1.0
[maven-release-plugin] prepare for next development iteration
Fixed time measures (Micros vs. Millis)
Add filename to FormData
[maven-release-plugin] prepare release http-post-1.1
[maven-release-plugin] prepare for next development iteration
Lowered referenced Jenkins version from 1.574 to 1.480
Updated OkHttp to 2.1.0. Removed hotfixed copy of MultipartBuilder.