Bug 570441 - Move to Tycho 2.2.0

Update pomless extension in platform.ui.

Change-Id: I132d982fa2cedf9bec9c018a9245c244b8b81c69
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/.mvn/extensions.xml b/.mvn/extensions.xml
index de3480c..0ba8158 100644
--- a/.mvn/extensions.xml
+++ b/.mvn/extensions.xml
@@ -3,6 +3,6 @@
   <extension>
     <groupId>org.eclipse.tycho.extras</groupId>
     <artifactId>tycho-pomless</artifactId>
-    <version>2.1.0</version>
+    <version>2.2.0</version>
   </extension>
 </extensions>
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