Silence boring Eclipse warnings: catching all exceptions, part 2

These warning fixes are new since my last pull request, please verify.

testing/src/main/scala/sbt/TestFramework.scala

@@ -83,7 +83,7 @@ final class TestRunner(framework: Framework, loader: ClassLoader, listeners: Seq
 		}
 		catch
 		{
-			case e =>
+			case e: Throwable =>
 				safeListenersCall(_.endGroup(name, e))
 				TestResult.Error
 		}