Add Mark hedging to MS-Word import

Now that we have added mark hedging as a question type, we now need to be able to add a couple of parsing options in the MS word document to ensure that you can import these types of questions directly as well.

The two new options are the mark hedging option and the mark number.

So perhaps we can go with

Mark: X (where X is an integer between 0 and 100)
MarkHedging: Yes

What do you think?