Switch to https URL for target definition file loading

The old hard coded URLs of the remote target definition files were using
regular https URLs, but the server is now configured to serve them via
https only and sends an HTTP 301 moved permanently which breaks the
client implementation.

Use the SSL/https URLs now.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=576006
Change-Id: Idfc117e93986793913f3689281d781357db94eb4
Signed-off-by: Markus Knauer <mknauer@eclipsesource.com>
diff --git a/bundles/org.eclipse.rap.tools.intro/src/org/eclipse/rap/tools/intro/internal/target/TargetProvider.java b/bundles/org.eclipse.rap.tools.intro/src/org/eclipse/rap/tools/intro/internal/target/TargetProvider.java
index 0240eb3..aee8e69 100644
--- a/bundles/org.eclipse.rap.tools.intro/src/org/eclipse/rap/tools/intro/internal/target/TargetProvider.java
+++ b/bundles/org.eclipse.rap.tools.intro/src/org/eclipse/rap/tools/intro/internal/target/TargetProvider.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2011, 2017 EclipseSource and others.
+ * Copyright (c) 2011, 2021 EclipseSource and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -24,11 +24,11 @@
   public final static String TARGET_FILE_NAME
     = "rap-" + getVersion() + ".target"; //$NON-NLS-1$ //$NON-NLS-2$
   public final static String TARGET_REPOSITORY
-    = "http://download.eclipse.org/rt/rap/targets/" + TARGET_FILE_NAME; //$NON-NLS-1$
+    = "https://download.eclipse.org/rt/rap/targets/" + TARGET_FILE_NAME; //$NON-NLS-1$
   public final static String TARGET_E4_FILE_NAME
     = "rap-" + getVersion() + "-e4.target"; //$NON-NLS-1$ //$NON-NLS-2$
   public final static String TARGET_E4_REPOSITORY
-    = "http://download.eclipse.org/rt/rap/targets/" + TARGET_E4_FILE_NAME; //$NON-NLS-1$
+    = "https://download.eclipse.org/rt/rap/targets/" + TARGET_E4_FILE_NAME; //$NON-NLS-1$
 
   public static String createLocalTargetDefinition( String targetDefinitionURI,
                                                     IProgressMonitor monitor )