Cannot bind to list attribute of input element

Hi,

**I'm submitting a bug report**
- **Library Version:**
1.0.5
- **Browser:**
Chrome 54 on Windows 7

**Current behavior:**
If I place the following in a template file: (where listIdVar is a string variable with any value)

```


```

I get the following error:
`TypeError: Cannot assign to read only property 'list' of object '#'`
Same happens if I use `list="prefix-${listIdVar}"` instead.

**Expected/desired behavior:**
I wanted regular one-way binding from my variable to the "list" attribute of the input element.
However, it seems that aurelia tries to do this via assigning to the read-only 'list' property.
Per http://stackoverflow.com/questions/24925336/set-html5-input-list-value-with-javascript, it seems the correct way to do this is via setAttribute.

Thanks.