Auto merge of #2779 - laurence6:master, r=micbou

Update ycmd for racer 2.0.10

# PR Prelude

Thank you for working on YCM! :)

**Please complete these steps and check these boxes (by putting an `x` inside
the brackets) _before_ filing your PR:**

- [x] I have read and understood YCM's [CONTRIBUTING][cont] document.
- [x] I have read and understood YCM's [CODE_OF_CONDUCT][code] document.
- [x] I have included tests for the changes in my PR. If not, I have included a
  rationale for why I haven't.
- [x] **I understand my PR may be closed if it becomes obvious I didn't
  actually perform all of these steps.**

# Why this change is necessary and useful

racer in racerd is updated from 2.0.6 to 2.0.10. Some bugs were fixed.

[Changelog of racer](https://github.com/racer-rust/racer/blob/master/CHANGELOG.md)

[cont]: https://github.com/Valloric/YouCompleteMe/blob/master/CONTRIBUTING.md
[code]: https://github.com/Valloric/YouCompleteMe/blob/master/CODE_OF_CONDUCT.md

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third_party/ycmd

@@ -1 +1 @@
-Subproject commit 3ad0300e94edc13799e8bf7b831de8b57153c5aa
+Subproject commit 60f48625e2e09d34b00ef1a3b29b1d986e9d0b22