Align GitBlit version naming with Gerrit.

Current master is moving to 2.8-SNAPSHOT, so GitBlit plugin
aligns from now with Gerrit versioning scheme.

Change-Id: I76ecd2fbc7a47683b3b122992c53e1dfa8d292c5

pom.xml

diff --git a/pom.xml b/pom.xml
index 8984b0c..5119be7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,11 +20,11 @@
   <artifactId>gitblit-plugin</artifactId>
   <description>GitBlit for Gerrit integrated as a plugin</description>
   <name>Gerrit - GitBlit Plugin</name>
-  <version>1.1-SNAPSHOT</version>
+  <version>2.8-SNAPSHOT</version>
   <properties>
     <Gerrit-ApiType>plugin</Gerrit-ApiType>
-    <Gerrit-ApiVersion>2.6-SNAPSHOT</Gerrit-ApiVersion>
     <Gerrit-ReloadMode>reload</Gerrit-ReloadMode>
+    <Gerrit-ApiVersion>${project.version}</Gerrit-ApiVersion>
     <Gerrit-InitStep>com.googlesource.gerrit.plugins.gitblit.GitBlitInitStep</Gerrit-InitStep>
     <Gerrit-HttpModule>com.googlesource.gerrit.plugins.gitblit.GitBlitModule</Gerrit-HttpModule>
   </properties>