Removes wrong resource in TestJavascript project.
Uses blue folder for iOS & Mac resources to prevent adding new resources.
sharedXXX -> getInstance, purgeXXX -> destroyInstance.
Refactors search path setting for TestJavascript.
Reverts GUIReader definition. it should be inherited from Object to make bindings happy.
Merge pull request #4865 from dumganhar/testjs-bugfix

Some fixes for TestJavascript