Add release attributes to pom.xml required for Maven Central sync

pom.xml

@@ -1,21 +1,41 @@
-<?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">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.braintree.java</groupId>
+    <groupId>com.braintreepayments.gateway</groupId>
     <artifactId>braintree-java</artifactId>
     <version>2.23.0-SNAPSHOT</version>
+    <description>Java Client Library for Braintree Payments Gateway</description>
+    <packaging>jar</packaging>
+    <name>Braintree Gateway Java Client Library</name>
+    <url>https://www.braintreegateway.com</url>
     <inceptionYear>2013</inceptionYear>
-    <properties>
-    </properties>
 
-    <repositories>
-        <repository>
-            <id>maven.apache.org</id>
-            <name>Apache Maven Repository</name>
-            <url>http://repo.maven.apache.org/maven2</url>
-        </repository>
-    </repositories>
+    <licenses>
+      <license>
+        <name>MIT license</name>
+        <url>http://www.opensource.org/licenses/mit-license.php</url>
+      </license>
+    </licenses>
+
+    <scm> <!-- currently pointing to our public github! -->
+      <url>
+        https://github.com/braintree/braintree-java/
+      </url>
+      <connection>
+        scm:git:ssh://[email protected]/braintree/braintree-java.git
+      </connection>
+      <developerConnection>
+        scm:git:ssh://[email protected]/braintree/braintree-java.git
+      </developerConnection>
+    </scm>
+
+    <developers>
+      <developer>
+        <id>devs</id>
+        <name>Braintree Payments</name>
+        <timezone>-5</timezone>
+      </developer>
+    </developers>
 
     <dependencies>
         <dependency>