Update samples and webAppCreator to gwt-maven-plugin 1.0-rc-8

Change-Id: I26960e311f6e0896edd3da647336d78f02dce24f
diff --git a/samples/dynatablerf/pom.xml b/samples/dynatablerf/pom.xml
index 6a171a0..ccbcdad 100644
--- a/samples/dynatablerf/pom.xml
+++ b/samples/dynatablerf/pom.xml
@@ -118,11 +118,10 @@
       <plugin>
         <groupId>net.ltgt.gwt.maven</groupId>
         <artifactId>gwt-maven-plugin</artifactId>
-        <version>1.0-rc-6</version>
+        <version>1.0-rc-8</version>
         <executions>
           <execution>
             <goals>
-              <goal>import-sources</goal>
               <goal>compile</goal>
             </goals>
           </execution>
diff --git a/samples/mobilewebapp/pom.xml b/samples/mobilewebapp/pom.xml
index faa531a..92b5d00 100644
--- a/samples/mobilewebapp/pom.xml
+++ b/samples/mobilewebapp/pom.xml
@@ -187,11 +187,10 @@
       <plugin>
         <groupId>net.ltgt.gwt.maven</groupId>
         <artifactId>gwt-maven-plugin</artifactId>
-        <version>1.0-rc-6</version>
+        <version>1.0-rc-8</version>
         <executions>
           <execution>
             <goals>
-              <goal>import-sources</goal>
               <goal>compile</goal>
             </goals>
           </execution>
diff --git a/samples/validation/pom.xml b/samples/validation/pom.xml
index fb72eca..12539d8 100644
--- a/samples/validation/pom.xml
+++ b/samples/validation/pom.xml
@@ -123,11 +123,10 @@
       <plugin>
         <groupId>net.ltgt.gwt.maven</groupId>
         <artifactId>gwt-maven-plugin</artifactId>
-        <version>1.0-rc-6</version>
+        <version>1.0-rc-8</version>
         <executions>
           <execution>
             <goals>
-              <goal>import-sources</goal>
               <goal>compile</goal>
             </goals>
           </execution>
diff --git a/user/src/com/google/gwt/user/tools/templates/maven/pom.xmlsrc b/user/src/com/google/gwt/user/tools/templates/maven/pom.xmlsrc
index f79163a..f1b19e7 100644
--- a/user/src/com/google/gwt/user/tools/templates/maven/pom.xmlsrc
+++ b/user/src/com/google/gwt/user/tools/templates/maven/pom.xmlsrc
@@ -70,13 +70,11 @@
       <plugin>
         <groupId>net.ltgt.gwt.maven</groupId>
         <artifactId>gwt-maven-plugin</artifactId>
-        <version>1.0-rc-6</version>
+        <version>1.0-rc-8</version>
         <executions>
           <execution>
             <goals>
-              <goal>import-sources</goal>
               <goal>compile</goal>
-              <goal>import-test-sources</goal>
               <goal>test</goal>
             </goals>
           </execution>