Adam Barth eb1b0333e9 Key should be const
For great constness.

Fixes #693
2015-08-20 09:50:51 -07:00
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2015-08-18 21:39:51 -07:00
2015-08-18 21:39:51 -07:00
2015-08-18 21:39:51 -07:00
2015-08-18 21:39:51 -07:00
2015-08-18 21:39:51 -07:00
2015-08-20 09:50:51 -07:00