Puts tree into 0.8.5 release mode.

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 0.8.5 (UNRELEASED)
+## 0.8.5 (June 27, 2017)
 
 BREAKING CHANGES:
 

version/version_base.go

@@ -12,5 +12,5 @@ func init() {
 	// A pre-release marker for the version. If this is "" (empty string)
 	// then it means that it is a final release. Otherwise, this is a pre-release
 	// such as "dev" (in development), "beta", "rc1", etc.
-	VersionPrerelease = "dev"
+	VersionPrerelease = ""
 }