Add tests for pixel <-> Point and viewport coordinates <-> image coordinates. Still working out the fine points of the target location.
Last of the tests for pixel/point/rect conversion.
min and max zoom level tests
Aspect ratio test
getContainerSize test
Incorporate code review feedback - instantiate the viewer for looping ZoomLevel tests, change a few little syntax things
Merge branch 'master' of https://github.com/nein09/openseadragon into viewport-tests
Clean up errors found by SublimeLinter.
Explicitly call viewport.update() after zooming and make the test expected values reflect that action.
Factor out looping and reopening viewer into a helper method, based on Ian's example.
Refactor other looping tests that don't reopen the viewer in a similar manner.
Merge pull request #521 from nein09/viewport-tests

Viewport tests
Merge branch 'master' into collections
Merge branch 'collections' into bugs