Replaced exception with logging a warning when using inject before the graph has been created

This could happen when an Activity is being destroyed and the Fragment would still move to the onActivityCreated state causing a call to inject without onCreate ever being called.

A stacktrace would look like this:
Caused by: java.lang.IllegalStateException: Used inject outside of activity lifecycle, or call to onCreate missing.
            at de.psdev.stabbedandroid.ExtendedGraphHelper.inject(ExtendedGraphHelper.java:34)
            at de.psdev.stabbedandroid.StabbedSherlockFragmentActivity.inject(StabbedSherlockFragmentActivity.java:37)
            at de.psdev.stabbedandroid.StabbedSherlockFragment.onActivityCreated(StabbedSherlockFragment.java:11)
            at com.example.fragments.BaseFragment.onActivityCreated(BaseFragment.java:30)
            at com.example.fragments.MenuFragment.onActivityCreated(MenuFragment.java:67)
            at android.support.v4.app.Fragment.performActivityCreated(Fragment.java:1508)
            at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:947)
            at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
            at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1086)
            at android.support.v4.app.FragmentManagerImpl.dispatchReallyStop(FragmentManager.java:1911)
            at android.support.v4.app.FragmentActivity.onReallyStop(FragmentActivity.java:809)
            at android.support.v4.app.FragmentActivity.doReallyStop(FragmentActivity.java:786)
            at android.support.v4.app.FragmentActivity.onDestroy(FragmentActivity.java:333)
            at com.actionbarsherlock.app.SherlockFragmentActivity.onDestroy(SherlockFragmentActivity.java:87)
            at de.psdev.stabbedandroid.StabbedSherlockFragmentActivity.onDestroy(StabbedSherlockFragmentActivity.java:23)
            at com.example.activities.MenuActivity.onDestroy(MenuActivity.java:127)
            at android.app.Activity.performDestroy(Activity.java:5415)
            at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1117)
            at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3465)
            at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3496)
            at android.app.ActivityThread.access$1300(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1450)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4998)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
            at dalvik.system.NativeStart.main(Native Method)