Update undertow-core and freemarker versions

Issue-ID: DCAEGEN2-2807
Signed-off-by: Remigiusz Janeczek <remigiusz.janeczek@nokia.com>
Change-Id: I4f7455fbf60f902e4b4acadcc85a789022e05d75
diff --git a/version.properties b/version.properties
index eabef1f..24828c2 100644
--- a/version.properties
+++ b/version.properties
@@ -1,5 +1,5 @@
 major=1
-minor=6
+minor=7
 patch=0
 base_version=${major}.${minor}.${patch}
 release_version=${base_version}