Use a known (and common) browser window size during acceptance tests related to infinite scroll.
Use a known (and common) browser window size during acceptance tests related to infinite scroll.

Previously the driver was allowed to set whatever default window size it wanted by default, which led to inconsistent test results between capybara-webkit versions.

amatriain/feedbunch,jmwenda/feedbunch,jmwenda/feedbunch,amatriain/feedbunch,amatriain/feedbunch,jmwenda/feedbunch,amatriain/feedbunch