Remove cruft, add comments
Remove cruft, add comments

Gizeta/instantclick,dieulot/instantclick,misog/instantclick,alexlur/snap,alexlur/snap,misog/instantclick,dieulot/instantclick,alexlur/snap,sherlock221/instantclick,TBRSS/instantclick,blahgeek/instantclick,Gizeta/instantclick,alexlur/snap,Gizeta/instantclick,TBRSS/instantclick,misog/instantclick,shizhua/instantclick,shizhua/instantclick,dieulot/instantclick,shizhua/instantclick,sherlock221/instantclick,TBRSS/instantclick,sherlock221/instantclick,blahgeek/instantclick,blahgeek/instantclick