Auto merge of #118 - frewsxcv:bump, r=Manishearth
Auto merge of #118 - frewsxcv:bump, r=Manishearth

Bump string_cache_shared

After completing #117, I bumped string_cache, but I should have bumped
string_cache_shared

<!-- Reviewable:start -->
[<img src="https://reviewable.io/review_button.png" height=40 alt="Review on Reviewable"/>](https://reviewable.io/reviews/servo/string-cache/118)
<!-- Reviewable:end -->

servo/string-cache