Update build configuration for RAP Runtime 3.14.0 RC1

- Use Eclipse Platform S-4.17RC1-202008261800

Change-Id: Iadb2af40d3b892a2821cc0219819dc20f48dd5a5
Signed-off-by: Markus Knauer <mknauer@eclipsesource.com>
diff --git a/features/org.eclipse.rap.e4.equinox.target.feature/.forceQualifierUpdate b/features/org.eclipse.rap.e4.equinox.target.feature/.forceQualifierUpdate
index a5a8010..a06c09f 100644
--- a/features/org.eclipse.rap.e4.equinox.target.feature/.forceQualifierUpdate
+++ b/features/org.eclipse.rap.e4.equinox.target.feature/.forceQualifierUpdate
@@ -1 +1 @@
-2020-08-21T12:00:00+00:00
+2020-08-28T12:00:00+00:00
diff --git a/features/org.eclipse.rap.equinox.target.feature/.forceQualifierUpdate b/features/org.eclipse.rap.equinox.target.feature/.forceQualifierUpdate
index a5a8010..a06c09f 100644
--- a/features/org.eclipse.rap.equinox.target.feature/.forceQualifierUpdate
+++ b/features/org.eclipse.rap.equinox.target.feature/.forceQualifierUpdate
@@ -1 +1 @@
-2020-08-21T12:00:00+00:00
+2020-08-28T12:00:00+00:00
diff --git a/releng/org.eclipse.rap.build/pom.xml b/releng/org.eclipse.rap.build/pom.xml
index b2c52b2..4ca8323 100644
--- a/releng/org.eclipse.rap.build/pom.xml
+++ b/releng/org.eclipse.rap.build/pom.xml
@@ -31,7 +31,7 @@
     <cbi-plugins.version>1.1.2</cbi-plugins.version>
     <jetty-repo.url>https://download.eclipse.org/jetty/updates/jetty-bundles-9.x/9.4.31.v20200723/</jetty-repo.url>
     <orbit-repo.url>https://download.eclipse.org/tools/orbit/downloads/2020-09/</orbit-repo.url>
-    <platform-repo.url>https://download.eclipse.org/eclipse/updates/4.17milestones/S-4.17M3-202008200230/</platform-repo.url>
+    <platform-repo.url>https://download.eclipse.org/eclipse/updates/4.17milestones/S-4.17RC1-202008261800/</platform-repo.url>
     <rap-extra-repo.url>https://build.eclipse.org/rt/rap/base-platforms/3.14/extra-dependencies/</rap-extra-repo.url>
     <license-repo.url>https://download.eclipse.org/cbi/updates/license/</license-repo.url>
     <!-- The build type, N for nighty builds, S for stable builds. S-builds will be signed. -->