To make the unit test run correct under surefire

Must add net.sf.milkfish.product to dependent

And set the fragment plugin to be activated when class loaded, check box checked

The mocked event borker is optional, if used, must annotated with Creatable

The commit is for avoid BundleContext not valid issue in plugin start under surefire test

	modified:   trace/net.sf.milkfish.systrace.android.core.test/META-INF/MANIFEST.MF
	modified:   trace/net.sf.milkfish.systrace.android.core.test/src/net/sf/milkfish/systrace/android/core/test/TestAndroidTrace.java
	modified:   trace/net.sf.milkfish.systrace.android.core/META-INF/MANIFEST.MF