make spotlight picture's effect rendered,
so that when it's displayed, no need to render (which is slow)
make recreate spotlight work again
refactor the patch
update doc/Spotlight.pptx with new spotlight (much faster)
refactor patch..
emend func summary
Merge pull request #317 from PowerPointLabs/Issue296

Why is spotlight slow #296
Refactor PPFitToSlide #299
Merge pull request #330 from PowerPointLabs/Issue299

Refactor PPFitToSlide #299
Refactor ConvertToPicture #329
Merge pull request #331 from PowerPointLabs/Issue329

Refactor ConvertToPicture #329
add ConvertToPicture.cs into project
Refactor PPAutoCrop

fixed #298
Merge pull request #332 from PowerPointLabs/Issue298

Refactor PPAutoCrop #298
Refactor a bit more for CropToShape
refactor a bit more for FitToSlide
refactor a bit more for ConvertToPicture
add line break for deployHelper's displayDone(content) api
Offline effects render works, go to next click is a bit buggy
Merge branch 'master' into Feature-AudioRecord