Now we can delete a project even if it hasn't been saved to file yet.

git-svn-id: http://google-refine.googlecode.com/svn/trunk@214 7d457c2a-affb-35e4-300a-418c747d4874

src/main/java/com/metaweb/gridworks/ProjectManager.java

@@ -309,14 +309,20 @@ public class ProjectManager implements Serializable {
     }
 
     public boolean deleteProject(Project project) {
-        File file = new File(_dir, project.id + ".project");
-        if (file.exists()) {
+    	if (_projectsMetadata.containsKey(project.id)) {
 	        _projects.remove(project.id);
 	        _projectsMetadata.remove(project.id);
-            boolean result = file.delete();
-            save();
-            return result;
+	        
+	        File file = new File(_dir, project.id + ".project");
+	        if (file.exists()) {
+	            file.delete();
 	        }
+	        
+	        save();
+	        
+	        return true;
+    	} else {
     		return false;
     	}
     }
+}