Update dependencies for Eclipse 2019-09 RC2

Change-Id: I510e6e9b34e1d020a72ae1ad7a2a6b831393c9bf
diff --git a/parent/pom.xml b/parent/pom.xml
index e87a443..02ec67b 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -23,13 +23,13 @@
 		<tycho-extras-version>${tycho-version}</tycho-extras-version>

 		<jboss-tycho-plugins-version>1.1.0</jboss-tycho-plugins-version>

 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

-		<platform-site>http://download.eclipse.org/releases/2019-06/</platform-site>

-		<orbit-site>http://download.eclipse.org/tools/orbit/downloads/drops/R20190602212107/repository/</orbit-site>

+		<platform-site>http://download.eclipse.org/eclipse/updates/4.13milestones/S-4.13RC1-201908281800/</platform-site>

+		<orbit-site>http://download.eclipse.org/tools/orbit/downloads/drops/R20190827152740/repository/</orbit-site>

 		<gef-site>http://download.eclipse.org/tools/gef/updates/legacy/releases/4.0.0_gef-master_1952/</gef-site>

-		<emf-site>http://download.eclipse.org/modeling/emf/emf/builds/release/2.18/</emf-site>

+		<emf-site>http://download.eclipse.org/modeling/emf/emf/builds/release/2.19/</emf-site>

 		<emf-transactions-site>http://download.eclipse.org/modeling/emf/transaction/updates/releases/R201805140824/</emf-transactions-site>

 		<emf-validation-site>http://download.eclipse.org/modeling/emf/validation/updates/releases/R201812070911/</emf-validation-site>

-		<swtbot-site>http://download.eclipse.org/technology/swtbot/milestones/2019-06-m3/</swtbot-site>

+		<swtbot-site>http://download.eclipse.org/technology/swtbot/releases/2.8.0/</swtbot-site>

 		<license-site>http://download.eclipse.org/cbi/updates/license/</license-site>

 	</properties>