Update Maven build machinery.

* Tycho 1.2.0 -> 1.3.0
* Maven compiler plugin 3.7.0 -> 3.8.0
* Maven enforcer 3.0.0 M1 -> 3.0.0 M2
* Maven resources plugin 3.0.2 -> 3.1.0
* Findbugs -> Spotbugs (as it's the maintained fork)
* Maven pmd plugin 3.9.0 -> 3.11.0

Change-Id: Ia1d9b8d52dd59b8c508f7008a20cee38b0e2e627
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
2 files changed