Parse and pass through query string params in local mode

[kislyuk]

No description provided.

[uncompiled]

I hope this gets merged in as I just came across this issue.

File ".../chalice/local.py", line 54, in match_route
    raise ValueError("No matching route found for: %s" % url)

[jamesls]

Thanks for the fix. I'm just going to add a quick unit test for this before merging to ensure we don't regress on this in the future.