Update maven release plugins for Java compat

Author: ato

commons/pom.xml

@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.archive</groupId>
 		<artifactId>heritrix</artifactId>
-		<version>3.6.1-SNAPSHOT</version>
+		<version>3.6.0</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.archive.heritrix</groupId>

contrib/pom.xml

@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.archive</groupId>
 		<artifactId>heritrix</artifactId>
-		<version>3.6.1-SNAPSHOT</version>
+		<version>3.6.0</version>
 	</parent>
 	<groupId>org.archive.heritrix</groupId>
 	<artifactId>heritrix-contrib</artifactId>
@@ -57,7 +57,7 @@
 				<!-- install source jars to maven repo http://maven.apache.org/plugins/maven-source-plugin/usage.html -->
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-source-plugin</artifactId>
-				<version>2.1.2</version>
+				<version>3.3.1</version>
 				<executions>
 					<execution>
 						<id>attach-sources</id>

dist/pom.xml

@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.archive</groupId>
 		<artifactId>heritrix</artifactId>
-		<version>3.6.1-SNAPSHOT</version>
+		<version>3.6.0</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.archive.heritrix</groupId>

engine/pom.xml

@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.archive</groupId>
 		<artifactId>heritrix</artifactId>
-		<version>3.6.1-SNAPSHOT</version>
+		<version>3.6.0</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.archive.heritrix</groupId>

modules/pom.xml

@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.archive</groupId>
 		<artifactId>heritrix</artifactId>
-		<version>3.6.1-SNAPSHOT</version>
+		<version>3.6.0</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.archive.heritrix</groupId>

pom.xml

@@ -18,7 +18,7 @@ http://maven.apache.org/guides/mini/guide-m1-m2.html
 	<groupId>org.archive</groupId>
 	<!--This project is parent to all under 'projects' subdirectory-->
 	<artifactId>heritrix</artifactId>
-	<version>3.6.1-SNAPSHOT</version>
+	<version>3.6.0</version>
 	<packaging>pom</packaging>
 	<name>Heritrix 3</name>
 	<description>
@@ -366,7 +366,7 @@ http://maven.apache.org/guides/mini/guide-m1-m2.html
 				http://maven.apache.org/plugins/maven-source-plugin/usage.html -->
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-source-plugin</artifactId>
-				<version>2.1.2</version>
+				<version>3.3.1</version>
 				<executions>
 					<execution>
 						<id>attach-sources</id>
@@ -428,7 +428,7 @@ http://maven.apache.org/guides/mini/guide-m1-m2.html
                    <plugin>
                      <groupId>org.sonatype.plugins</groupId>
                      <artifactId>nexus-staging-maven-plugin</artifactId>
-                     <version>1.6.7</version>
+                     <version>1.7.0</version>
                      <extensions>true</extensions>
                      <configuration>
                        <serverId>sonatype-nexus-staging</serverId>
@@ -439,7 +439,7 @@ http://maven.apache.org/guides/mini/guide-m1-m2.html
                    <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-release-plugin</artifactId>
-                    <version>2.5.3</version>
+                    <version>3.1.1</version>
                     <configuration>
                     <arguments>-Dmaven.test.skipTests=true -Dmaven.test.skip=true</arguments>                    
                       <tagNameFormat>@{project.version}</tagNameFormat>
@@ -452,7 +452,7 @@ http://maven.apache.org/guides/mini/guide-m1-m2.html
                     <plugin>
                      <groupId>org.apache.maven.plugins</groupId>
                      <artifactId>maven-source-plugin</artifactId>
-                     <version>2.2.1</version>
+                     <version>3.3.1</version>
                      <executions>
                        <execution>
                          <id>attach-sources</id>
@@ -465,7 +465,7 @@ http://maven.apache.org/guides/mini/guide-m1-m2.html
                    <plugin>
                      <groupId>org.apache.maven.plugins</groupId>
                      <artifactId>maven-javadoc-plugin</artifactId>
-                     <version>2.9.1</version>
+                     <version>3.10.1</version>
                      <executions>
                        <execution>
                          <id>attach-javadocs</id>
@@ -478,7 +478,7 @@ http://maven.apache.org/guides/mini/guide-m1-m2.html
                        <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-gpg-plugin</artifactId>
-                        <version>1.5</version>
+                        <version>3.2.7</version>
                         <executions>
                           <execution>
                             <id>sign-artifacts</id>