POM: update parent to pom-scijava 28.0.0

And add ciManagement info to fix deployment to maven.scijava.org

Author: imagejan

pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.scijava</groupId>
 		<artifactId>pom-scijava</artifactId>
-		<version>26.0.0</version>
+		<version>28.0.0</version>
 		<relativePath />
 	</parent>
 
@@ -83,7 +83,8 @@
 		<url>https://github.com/scijava/scijava-plugins-io-table/issues</url>
 	</issueManagement>
 	<ciManagement>
-		<system>None</system>
+		<system>Travis CI</system>
+		<url>https://travis-ci.org/scijava/scijava-plugins-io-table</url>
 	</ciManagement>
 
 	<properties>