Fixing issues mainly to take care of the review comments from reviewers.

    [Khronos #26] bindingTesting/fetchInfo/cl_event_getProfilingInfo.html
    [Khronos #27] Refactor bindingTesting/eventsAndCallbacks/cl_webcl_waitForEvents.html
    [Khronos #9] Oddness in SetArg() functionality testing.
    Add test cases for API Kernel::getArgInfo, new WebCL::createContext
    [Khronos #19] Show device/platform if standalone load, Home: upper frame is scrollable, default platform and devices should have default values
    Adding testcases related to WebCLEvents.
    [Partial fix for Khronos #34]Relax some test cases when platform has a single device.

    Contributors :
    SRI-B : Shilpa Shri, Sharath Kamath.
    SRA : Antonio, Steven and Igor.

    Details on changes is available at master_r01202014 branch:
    https://github.com/SRA-SiliconValley/webkit-webcl-conformance.git.