Plugin updates &c.

Reinstated 1.8 javadoc stuff, because build3 can handle that now.

pom.xml

@@ -36,6 +36,10 @@
     </developer>
   </developers>
 
+  <prerequisites>
+    <maven>3.3.0</maven>
+  </prerequisites>
+
   <scm>
     <connection>scm:git:git://github.com/threerings/depot.git</connection>
     <developerConnection>scm:git:git@github.com:threerings/depot.git</developerConnection>
@@ -86,7 +90,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.1</version>
+        <version>3.3</version>
         <configuration>
           <source>1.6</source>
           <target>1.6</target>
@@ -104,7 +108,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-resources-plugin</artifactId>
-        <version>2.6</version>
+        <version>2.7</version>
         <configuration>
           <encoding>UTF-8</encoding>
         </configuration>
@@ -113,7 +117,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.13</version>
+        <version>2.18.1</version>
         <configuration>
           <excludes>
             <exclude>com/samskivert/depot/TestCacheAdapter*.java</exclude>
@@ -126,13 +130,11 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-javadoc-plugin</artifactId>
-        <version>2.9.1</version>
+        <version>2.10.3</version>
         <configuration>
           <quiet>true</quiet>
           <show>public</show>
-          <!--
           <additionalparam>-Xdoclint:all -Xdoclint:-missing</additionalparam>
-          -->
           <excludePackageNames>com.samskivert.depot.impl</excludePackageNames>
           <links>
             <link>http://docs.guava-libraries.googlecode.com/git/javadoc/</link>
@@ -141,38 +143,16 @@
         </configuration>
       </plugin>
 
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-jar-plugin</artifactId>
-        <version>2.5</version>
-      </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-install-plugin</artifactId>
-        <version>2.5.1</version>
-      </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-deploy-plugin</artifactId>
-        <version>2.7</version>
-      </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-dependency-plugin</artifactId>
-        <version>2.8</version>
-      </plugin>
-
       <plugin>
         <groupId>org.sonatype.plugins</groupId>
         <artifactId>nexus-staging-maven-plugin</artifactId>
-        <version>1.6.2</version>
+        <version>1.6.6</version>
         <extensions>true</extensions>
+        <inherited>false</inherited>
         <configuration>
           <nexusUrl>https://oss.sonatype.org/</nexusUrl>
-          <serverId>sonatype-nexus-staging</serverId>
+          <serverId>ossrh-releases</serverId>
+          <stagingProfileId>aaa740f9c5c260</stagingProfileId>
         </configuration>
       </plugin>
     </plugins>
@@ -230,7 +210,7 @@
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-gpg-plugin</artifactId>
-            <version>1.5</version>
+            <version>1.6</version>
             <executions>
               <execution>
                 <id>sign-artifacts</id>