[releng] Switch to Oxygen.2 of Eclipse Platform + Oxygen.3 RC1 of Orbit

Change-Id: Idfdf41e63d19974dd51618523946bf85b35490d9
Signed-off-by: Andreas Sewe <andreas.sewe@codetrails.com>
diff --git a/releng/targets/oxygen/oxygen.target b/releng/targets/oxygen/oxygen.target
index b79ef27..69d86ed 100644
--- a/releng/targets/oxygen/oxygen.target
+++ b/releng/targets/oxygen/oxygen.target
@@ -1,12 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<?pde version="3.8"?><target name="Target Definition for Eclipse Oxygen (4.7)" sequenceNumber="5">
+<?pde version="3.8"?><target name="Target Definition for Eclipse Oxygen (4.7)" sequenceNumber="6">
 <locations>
 <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="slicer" includeSource="true" type="InstallableUnit">
 <unit id="org.eclipse.ecf.core.feature.feature.group" version="0.0.0"/>
 <unit id="org.eclipse.ecf.filetransfer.feature.feature.group" version="0.0.0"/>
 <unit id="org.eclipse.equinox.p2.sdk.feature.group" version="0.0.0"/>
 <unit id="org.eclipse.sdk.ide" version="0.0.0"/>
-<repository location="http://download.eclipse.org/eclipse/updates/4.7/R-4.7.1a-201710090410/"/>
+<!-- Stable platform build for Oxygen.2 RC4 -->
+<repository location="http://download.eclipse.org/eclipse/updates/4.7-M-builds/M-4.7.2RC4-201711300510/"/>
 </location>
 <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="slicer" includeSource="true" type="InstallableUnit">
 <unit id="org.eclipse.emf.sdk.feature.group" version="0.0.0"/>
@@ -41,8 +42,8 @@
 <unit id="org.objenesis" version="1.0.0.v201505121915"/>
 <unit id="org.slf4j.api" version="1.7.2.v20121108-1250"/>
 <unit id="org.yaml.snakeyaml" version="1.14.0.v201604211500"/>
-<!-- Orbit M-build for Oxygen.1 RC1 -->
-<repository location="http://download.eclipse.org/tools/orbit/downloads/drops/M20170818183741/repository/"/>
+<!-- Stable Orbit build for Oxygen.3 RC1 -->
+<repository location="http://download.eclipse.org/tools/orbit/downloads/drops/M20180206163158/repository"/>
 </location>
 <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="slicer" includeSource="true" type="InstallableUnit">
 <unit id="org.eclipse.swtbot.feature.group" version="2.2.1.201402241301"/>