fixed .classpath file of mgwt bundle

java/com.googlecode.mgwt/.classpath

@@ -1,5 +1,7 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry exported="true" kind="lib" path="lib/mgwt-2.0.0.jar"/>
-	<classpathentry kind="output" path="bin"/>
-</classpath>
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry exported="true" kind="lib" path="lib/mgwt-2.0.0.jar"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

java/com.googlecode.mgwt/META-INF/MANIFEST.MF

@@ -2,9 +2,9 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: mgwt
 Bundle-SymbolicName: com.googlecode.mgwt
-Bundle-Version: 2.6.1.qualifier
+Bundle-Version: 2.0.0.qualifier
 Bundle-Vendor: GOOGLE
-Bundle-RequiredExecutionEnvironment: JavaSE-1.7
+Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Bundle-ClassPath: lib/mgwt-2.0.0.jar,
  .
 Export-Package: com.googlecode.mgwt.collection.client,

java/com.googlecode.mgwt/pom.xml

@@ -8,6 +8,6 @@
     <version>1.0.0-SNAPSHOT</version>
   </parent>
   <artifactId>com.googlecode.mgwt</artifactId>
-  <version>2.6.1-SNAPSHOT</version>
+  <version>2.0.0-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
 </project>