Refine dependency specifications
diff --git a/ecommons/org.eclipse.statet.ecommons.databinding.core/META-INF/MANIFEST.MF b/ecommons/org.eclipse.statet.ecommons.databinding.core/META-INF/MANIFEST.MF
index 8dcc256..9c84e6a 100644
--- a/ecommons/org.eclipse.statet.ecommons.databinding.core/META-INF/MANIFEST.MF
+++ b/ecommons/org.eclipse.statet.ecommons.databinding.core/META-INF/MANIFEST.MF
@@ -7,7 +7,7 @@
 Bundle-ActivationPolicy: lazy
 Bundle-Activator: org.eclipse.statet.internal.ecommons.databinding.core.ECommonsDatabindingCorePlugin
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
-Require-Bundle: org.eclipse.core.runtime;bundle-version="3.16.0",
+Require-Bundle: org.eclipse.core.runtime;bundle-version="3.18.0",
  org.eclipse.core.databinding;bundle-version="1.7.0";visibility:=reexport
 Import-Package: com.ibm.icu.text;version="64.2.0",
  org.eclipse.statet.jcommons.collections;version="4.2.0",
diff --git a/ecommons/org.eclipse.statet.ecommons.debug.core/META-INF/MANIFEST.MF b/ecommons/org.eclipse.statet.ecommons.debug.core/META-INF/MANIFEST.MF
index c5db290..c4f3976 100644
--- a/ecommons/org.eclipse.statet.ecommons.debug.core/META-INF/MANIFEST.MF
+++ b/ecommons/org.eclipse.statet.ecommons.debug.core/META-INF/MANIFEST.MF
@@ -8,7 +8,7 @@
 Bundle-Activator: org.eclipse.statet.internal.ecommons.debug.core.ECommonsDebugCorePlugin
 Bundle-Localization: plugin
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
-Require-Bundle: org.eclipse.core.runtime;bundle-version="3.16.0",
+Require-Bundle: org.eclipse.core.runtime;bundle-version="3.18.0",
  org.eclipse.debug.core;bundle-version="3.14.100";visibility:=reexport,
  org.eclipse.core.filesystem,
  org.eclipse.core.variables
diff --git a/ecommons/org.eclipse.statet.ecommons.debug.ui/META-INF/MANIFEST.MF b/ecommons/org.eclipse.statet.ecommons.debug.ui/META-INF/MANIFEST.MF
index 498a25e..a79e0a1 100644
--- a/ecommons/org.eclipse.statet.ecommons.debug.ui/META-INF/MANIFEST.MF
+++ b/ecommons/org.eclipse.statet.ecommons.debug.ui/META-INF/MANIFEST.MF
@@ -8,7 +8,7 @@
 Bundle-Activator: org.eclipse.statet.internal.ecommons.debug.ui.ECommonsDebugUIPlugin
 Bundle-Localization: plugin
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
-Require-Bundle: org.eclipse.core.runtime;bundle-version="3.16.0",
+Require-Bundle: org.eclipse.core.runtime;bundle-version="3.18.0",
  org.eclipse.core.variables,
  org.eclipse.statet.ecommons.databinding.core;bundle-version="[4.2.0,4.3.0)",
  org.eclipse.statet.ecommons.debug.core;bundle-version="[4.2.0,4.3.0)",
diff --git a/ecommons/org.eclipse.statet.ecommons.preferences.core/META-INF/MANIFEST.MF b/ecommons/org.eclipse.statet.ecommons.preferences.core/META-INF/MANIFEST.MF
index 4263bbf..7595aef 100644
--- a/ecommons/org.eclipse.statet.ecommons.preferences.core/META-INF/MANIFEST.MF
+++ b/ecommons/org.eclipse.statet.ecommons.preferences.core/META-INF/MANIFEST.MF
@@ -7,7 +7,7 @@
 Bundle-ActivationPolicy: lazy
 Bundle-Activator: org.eclipse.statet.internal.ecommons.preferences.core.ECommonsPreferencesCorePlugin
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
-Require-Bundle: org.eclipse.core.runtime;bundle-version="3.16.0"
+Require-Bundle: org.eclipse.core.runtime;bundle-version="3.18.0"
 Import-Package: com.ibm.icu.text;version="64.2.0",
  org.eclipse.statet.jcommons.collections;version="4.2.0",
  org.eclipse.statet.jcommons.lang;version="4.2.0"
diff --git a/ecommons/org.eclipse.statet.ecommons.runtime.core/META-INF/MANIFEST.MF b/ecommons/org.eclipse.statet.ecommons.runtime.core/META-INF/MANIFEST.MF
index 05c6353..88d3dd6 100644
--- a/ecommons/org.eclipse.statet.ecommons.runtime.core/META-INF/MANIFEST.MF
+++ b/ecommons/org.eclipse.statet.ecommons.runtime.core/META-INF/MANIFEST.MF
@@ -6,7 +6,7 @@
 Bundle-Name: StatET ECommons - Runtime - Core  (Incubation)
 Bundle-ActivationPolicy: lazy
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
-Require-Bundle: org.eclipse.core.runtime;bundle-version="3.16.0";visibility:=reexport
+Require-Bundle: org.eclipse.core.runtime;bundle-version="3.18.0";visibility:=reexport
 Import-Package: org.eclipse.statet.jcommons.collections;version="4.2.0",
  org.eclipse.statet.jcommons.lang;version="4.2.0",
  org.eclipse.statet.jcommons.runtime;version="4.2.0",
diff --git a/ecommons/org.eclipse.statet.ecommons.uimisc/META-INF/MANIFEST.MF b/ecommons/org.eclipse.statet.ecommons.uimisc/META-INF/MANIFEST.MF
index d16cede..b12dd49 100644
--- a/ecommons/org.eclipse.statet.ecommons.uimisc/META-INF/MANIFEST.MF
+++ b/ecommons/org.eclipse.statet.ecommons.uimisc/META-INF/MANIFEST.MF
@@ -9,6 +9,7 @@
 Bundle-Localization: plugin
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Require-Bundle: org.eclipse.statet.ecommons.runtime.core;bundle-version="[4.2.0,4.3.0)",
+ org.eclipse.core.runtime;bundle-version="[3.18.0,3.19.0)",
  org.eclipse.e4.core.contexts;bundle-version="1.7.0";resolution:=optional,
  org.eclipse.ui,
  org.eclipse.jface.text;resolution:=optional,