Bug 541805: Update and adapt to Eclipse 2018-12

Change-Id: I7255f6f1b9fae7668e4f3e3a9c6fc8df0a3edb8c
diff --git a/eclient/org.eclipse.statet.rj.eclient.core/META-INF/MANIFEST.MF b/eclient/org.eclipse.statet.rj.eclient.core/META-INF/MANIFEST.MF
index a0ea338..9cbded4 100644
--- a/eclient/org.eclipse.statet.rj.eclient.core/META-INF/MANIFEST.MF
+++ b/eclient/org.eclipse.statet.rj.eclient.core/META-INF/MANIFEST.MF
@@ -8,5 +8,5 @@
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Require-Bundle: org.eclipse.statet.rj.data;bundle-version="[4.0.0,4.1.0)";visibility:=reexport,
  org.eclipse.statet.rj.services.core;bundle-version="[4.0.0,4.1.0)";visibility:=reexport,
- org.eclipse.core.runtime;bundle-version="3.12.0";resolution:=optional
+ org.eclipse.core.runtime;bundle-version="3.15.0"
 Export-Package: org.eclipse.statet.rj.rsetups;version="4.0.0"