Workaround for issue #88 - use AsyncTask.THREAD_POOL_EXECUTOR for long running tasks so that other async tasks can be used in parallel.

Conflicts:
	org.ektorp.android/src/main/java/org/ektorp/android/util/CouchbaseViewListAdapter.java
Follow up commit for workaround attempt for issue #88 - use an earlier version of the android.jar artifact which still supports the AyncTask.THREAD_POOL_EXECUTOR
Merge pull request #119 from couchbaselabs/master

Workaround for Issue #88