Update dependencies for Oxygen M6

* Add preference settings for parent project

Change-Id: I782ecdd911f987205c5a41817770d36421e5a606
diff --git a/parent/.settings/org.eclipse.core.resources.prefs b/parent/.settings/org.eclipse.core.resources.prefs
new file mode 100644
index 0000000..4824b80
--- /dev/null
+++ b/parent/.settings/org.eclipse.core.resources.prefs
@@ -0,0 +1,2 @@
+eclipse.preferences.version=1

+encoding/<project>=UTF-8

diff --git a/parent/pom.xml b/parent/pom.xml
index 0d5aebf..9491dc0 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -14,8 +14,8 @@
 		<tycho-extras-version>${tycho-version}</tycho-extras-version>

 		<jboss-tycho-plugins-version>0.22.0</jboss-tycho-plugins-version>

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

-		<platform-site>http://download.eclipse.org/eclipse/updates/4.7milestones/S-4.7M5-201701261030/</platform-site>

-		<orbit-site>http://download.eclipse.org/tools/orbit/downloads/drops/S20170120205402/repository/</orbit-site>

+		<platform-site>http://download.eclipse.org/eclipse/updates/4.7milestones/S-4.7M6-201703082000/</platform-site>

+		<orbit-site>http://download.eclipse.org/tools/orbit/downloads/drops/S20170306214312/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/updates/2.13milestones/</emf-site>

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

diff --git a/releng/org.eclipse.graphiti.releng/build.rmap b/releng/org.eclipse.graphiti.releng/build.rmap
index 8615ac9..bae749c 100644
--- a/releng/org.eclipse.graphiti.releng/build.rmap
+++ b/releng/org.eclipse.graphiti.releng/build.rmap
@@ -55,7 +55,7 @@
     <rm:provider componentTypes="eclipse.feature,osgi.bundle" readerType="p2" source="false" mutable="false">

       <rm:property key="buckminster.source" value="false"/>

       <rm:property key="buckminster.mutable" value="false"/>

-      <rm:uri format="{0}/tools/orbit/downloads/drops/S20170120205402/repository/">

+      <rm:uri format="{0}/tools/orbit/downloads/drops/S20170306214312/repository/">

         <bc:propertyRef key="eclipse.downloads"/>

       </rm:uri>

     </rm:provider>

@@ -64,7 +64,7 @@
     <rm:provider componentTypes="eclipse.feature,osgi.bundle" readerType="p2" source="false" mutable="false">

       <rm:property key="buckminster.source" value="false"/>

       <rm:property key="buckminster.mutable" value="false"/>

-      <rm:uri format="{0}/eclipse/updates/4.7milestones/S-4.7M5-201701261030/">

+      <rm:uri format="{0}/eclipse/updates/4.7milestones/S-4.7M6-201703082000/">

         <bc:propertyRef key="eclipse.downloads"/>

       </rm:uri>

     </rm:provider>