Update m2e-maven-runtime build deps.

* Tycho 1.2.0 to 1.4.0
* Maven bundle 2.5.4 to 4.2.0
* Compiler plugin 3.7.0 to 3.8.1
* Fix warnings reported by maven

Change-Id: I403a401ca2e2653a6716d16ff876cba1ee6795c3
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
1 file changed