[releng] Move to Tycho 1.4.0

Change-Id: Iaa56d9c5668fd6cc0e13d9b41e970026e9a05c84
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>

org.eclipse.emf.ecoretools.build/pom.xml

diff --git a/org.eclipse.emf.ecoretools.build/pom.xml b/org.eclipse.emf.ecoretools.build/pom.xml
index d358ba8..34f2054 100644
--- a/org.eclipse.emf.ecoretools.build/pom.xml
+++ b/org.eclipse.emf.ecoretools.build/pom.xml
@@ -37,7 +37,7 @@
   </licenses>
 
   <properties>
-    <tycho-version>0.23.1</tycho-version>
+    <tycho-version>1.4.0</tycho-version>
     <tycho.scmUrl>scm:git:https://git.eclipse.org/r/ecoretools/org.eclipse.ecoretools</tycho.scmUrl>
   </properties>