Merge pull request #138 from blackhydrogen/resource-image

Resource image
Bug fix for one of the modules.
Reverted back to QUnit 1.12 style of coding.
Added Unit tests for ImageResource (inherently tests part of ImageControls).
Added "Test" to the filenames of test/imageResourceViewer.js and test/panZoomWidget.js.
Added path to imageResourceViewerTest.js and panZoomWidgetTest.js into testRunner.html.