cword highlight using CursorHold instead of CursorMoved

[jcelliott]

I changed the autocmd used for cword highlighting to CursorHold, which replicates behavior I've seen in several IDEs, and is less distracting than CursorMoved. Would you be willing to add an option to choose between the two autocmds. Or accept a pull request to that effect?

[t9md]

thanks, yes I will accept