Merge pull request #643 from wymeditor/manipulationTestHelperClick

manipulationTestHelper now supports click manipulations
Merge branch 'master' into prepareUnitTestModuleToUtils
Remove IMG_SRC that is accidental, from future PR.
JSHint thing
Merge pull request #644 from wymeditor/prepareUnitTestModuleToUtils

Move some helpers from test.js to utils.js
Merge branch 'master' into classToggling