Update Tycho version.

Signed-off-by: Greg Watson <g.watson@computer.org>
diff --git a/pom.xml b/pom.xml
index ef671b4..f965f6e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
 	<name>PTP Products</name>
 
 	<properties>
-		<tycho-version>0.18.1</tycho-version>
+		<tycho-version>0.19.0</tycho-version>
 		<eclipse-release>kepler</eclipse-release>
 		<eclipse-site>http://download.eclipse.org/releases/kepler</eclipse-site>
 		<ptp-site>http://download.eclipse.org/tools/ptp/builds/${eclipse-release}/nightly</ptp-site>