Update Maven build machinery.

* Set Maven 3.1.1 prereq for the latest jarsigner plugin.
* Update eclipse-jarsigner-plugin to 1.1.3
* Update maven-compiler-plugin to 3.5.1

Change-Id: I65d094469c22b39bd031f0a12bff641412b21b5f
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
2 files changed