Fix: usage Gerrit maven repo and 2.5 plugin-api.

Change-Id: Id8b960b752cf76966de6f41200a4c531aa3bf714
Signed-off-by: Luca Milanesio <luca.milanesio@gmail.com>

pom.xml

diff --git a/pom.xml b/pom.xml
index 51b2af5..acf29aa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
   <artifactId>gitblit-plugin</artifactId>
   <description>GitBlit for Gerrit integrated as a plugin</description>
   <name>Gerrit - GitBlit Plugin</name>
-  <version>2.5-SNAPSHOT</version>
+  <version>2.5</version>
   <properties>
     <Gerrit-ApiType>plugin</Gerrit-ApiType>
     <Gerrit-ApiVersion>${project.version}</Gerrit-ApiVersion>
@@ -188,6 +188,10 @@
 
   <repositories>
     <repository>
+      <id>gerrit-api-repository</id>
+      <url>https://gerrit-api.commondatastorage.googleapis.com/release/</url>
+    </repository>
+    <repository>
       <id>gerritforge-gitblit-repository</id>
       <url>http://gerritforge.com/snapshot/</url>
     </repository>