Use Tycho 1.2.0 to build.

Change-Id: I6bed57ae981292c07e0eb42ac6ab157efb35cfc0
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/pom.xml b/pom.xml
index 2956a14..21e68f8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -41,7 +41,7 @@
 	</modules>
 
 	<properties>
-		<tycho-version>1.1.0</tycho-version>
+		<tycho-version>1.2.0</tycho-version>
 		<tycho-groupid>org.eclipse.tycho</tycho-groupid>
 		<antrun-version>1.8</antrun-version>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>