switch parent pom reference everywhere to 28 where it was 27 before
this can be safely done because the only difference between 27 and 28 is an updated maven-source-plugin (fix heap space error)
git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1756968 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index ade7802..064b8dd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
<parent>
<groupId>org.apache.sling</groupId>
<artifactId>sling</artifactId>
- <version>27</version>
+ <version>28</version>
<relativePath />
</parent>