Solution without duplicating library source code

Hi I found your blog from Google, but I didn't really like the idea of maintaining a separate `FragmentStatePagerAdapter`. A simpler solution is to use `FragmentPagerAdapter` instead, and override the `getItemId()` and `getItemPosition()` methods.

See [here](http://stackoverflow.com/questions/10396321/remove-fragment-page-from-viewpager-in-android/26944013#26944013) for some source code
