Add web workers for string processing #22
Description
It might be nice to have the string processing happen on separate threads. However, it may not be worth it. Profile very large word documents and find out. It would also be nice to investigate an early-bailout if the string processing starts to take too long, especially to defend against worst-case time complexity scenarios in the diff algorithm.
This is very low priority as I don't expect people to attempt to bomb the website with 50Mb text files of completely differing text.