fixed "many accordionizers are present, only one can autoscroll" bug
further Accordionizer().buildDOMTree() method optimization
- removed redundant jQuery method calls: we already have element and all its properties, so we don't need to wrap this element to jQuery object and retrieve those properties with jQuery methods
 - moved AccoridionizerSlide wrapper builder method to same loop, which parses DOM tree of current accordionizer ancestor
minor readability tweak in Accordionizer().buildDOMTree() method implementation
crude time profiling wrappers
accordionizer init routine refactored
- canvas initialization now proveded by AccordionizerSlide object method
- async image loading and canvas initialization
- grayscale() method moved to 'filters' property of Accordionizer() object (more filters implementation planned)
- minor options and variable names tweaks
- example page reworked
- synchronous time profilers removed (they are useless with async plugin code execution)
draft of asynchronous initialization
- Accordionize.paintOnCanvas() and Accordionize.getCanvas() mehods merged to AccordionizeSlide.initCanvas method, called after required image is loaded
Merge branch 'master' into jquery/basics