Add repository information to POM.

ProtocolLib/dependency-reduced-pom.xml

@@ -1,5 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <parent>
+    <artifactId>oss-parent</artifactId>
+    <groupId>org.sonatype.oss</groupId>
+    <version>7</version>
+    <relativePath>../pom.xml/pom.xml</relativePath>
+  </parent>
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.comphenix.protocol</groupId>
   <artifactId>ProtocolLib</artifactId>

ProtocolLib/pom.xml

@@ -10,6 +10,12 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
   
+  <parent>
+    <groupId>org.sonatype.oss</groupId>
+    <artifactId>oss-parent</artifactId>
+    <version>7</version>
+  </parent>
+  
   <build>
     <sourceDirectory>src/main/java</sourceDirectory>
     <testSourceDirectory>src/test/java</testSourceDirectory>