[maven-release-plugin] prepare release sherlock-1.12

pom.xml

@@ -6,7 +6,7 @@
     <packaging>jar</packaging>
     <name>sherlock</name>
     <description>Anomaly detection tool for timeseries data in Druid</description>
-    <version>1.12-SNAPSHOT</version>
+    <version>1.12</version>
     <url>https://github.com/yahoo/sherlock</url>
 
     <licenses>
@@ -38,7 +38,7 @@
         <connection>scm:git:[email protected]:yahoo/sherlock.git</connection>
         <developerConnection>scm:git:[email protected]:yahoo/sherlock.git</developerConnection>
         <url>https://github.com/yahoo/sherlock</url>
-        <tag>HEAD</tag>
+        <tag>sherlock-1.12</tag>
     </scm>
 
     <issueManagement>
@@ -263,7 +263,7 @@
             <plugin>
                 <groupId>org.jacoco</groupId>
                 <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.7.6.201602180812</version>
+                <version>0.8.8</version>
                 <executions>
                     <execution>
                         <id>prepare-agent</id>