Adding autorefresh using courier and timefilter
Adding tests for refresh interval feature
Added more tests to refresh interval feature. Adding better error checking.
Merge branch 'master' of https://github.com/elasticsearch/kibana into TimefilterAutoRefresh

Conflicts:
	src/kibana/components/timepicker/timepicker.html
Prevent refresh of data when "off" refresh interval is selected
Merge branch 'TimefilterAutoRefresh' of github.com:grouma/kibana into segment_in_courier