Add UshahidiIncidentList, which provides some common code for dealing
with lists of incidents.
Add simple test harness for Ushahidi clients.
Fix bug in the Makefile for tests.
Add an experiment to quickly check that the UshahidiClientTestHarness
works as expected.
Update UsahidiWebClient to use UshahidiIncidentList.
Add command to Makefile to update the jar file.