Merge tag 'rel/1.4' and prepare for next iteration

Tagging version 1.4 of AntUnit
diff --git a/changes.xml b/changes.xml
index e603faa..dd790b9 100644
--- a/changes.xml
+++ b/changes.xml
@@ -37,7 +37,9 @@
     <title>Apache AntUnit</title>
   </properties>
 
-  <release version="1.4" date="unreleased">
+  <release version="1.5" date="unreleased">
+  </release>
+  <release version="1.4" date="2018-06-25">
     <action type="update" breaks-bwc="true">
       The coordinates inside the Ivy file have been changed to match
       those of the POM.
diff --git a/version.properties b/version.properties
index 9c4bbb8..6f22f94 100644
--- a/version.properties
+++ b/version.properties
@@ -12,4 +12,4 @@
 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
-artifact.version=1.4alpha
+artifact.version=1.5alpha