Add update rules to ignore pre releases

Author: akurtakov

Diff for: pom.xml

@@ -184,6 +184,7 @@
           <version>${tycho-version}</version>
           <configuration>
           	<updateEmptyVersion>false</updateEmptyVersion>
+          	<mavenRulesUri>${project.basedir}/update-rules.xml</mavenRulesUri>
           </configuration>
 	 </plugin>
 	<plugin>

Diff for: releng/org.eclipse.linuxtools.target/update-rules.xml

@@ -0,0 +1,10 @@
+<ruleset comparisonMethod="maven"
+	xmlns="https://www.mojohaus.org/VERSIONS/RULE/2.1.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="https://www.mojohaus.org/VERSIONS/RULE/2.1.0 https://www.mojohaus.org/versions/versions-model/xsd/rule-2.1.0.xsd">
+	<!-- see https://www.mojohaus.org/versions/versions-maven-plugin/version-rules.html -->
+	<ignoreVersions>
+		<ignoreVersion type="regex">.+[-.](alpha|beta|M|RC|rc|pre.1)\d*$</ignoreVersion>
+	</ignoreVersions>
+	
+</ruleset>