csl: Release OSS libraries

Finagle 6.31
Util 6.30
Scrooge 4.2
TwitterServer 1.16
Ostrich 9.14

RB_ID=774633
TBR=true

Author: vkostyukov

CHANGES

@@ -7,9 +7,8 @@ Note that ``RB_ID=#`` correspond to associated messages in commits.
 1.x
 -----
 
-New Features:
--------------
-  * Add a default favicon to the admin pages.
+1.16.0
+~~~~~~~
 
 1.15.0
 ~~~~~~~

project/Build.scala

@@ -10,9 +10,9 @@ object TwitterServer extends Build {
   val branch = Process("git" :: "rev-parse" :: "--abbrev-ref" :: "HEAD" :: Nil).!!.trim
   val suffix = if (branch == "master") "" else "-SNAPSHOT"
 
-  val libVersion = "1.15.0" + suffix
-  val utilVersion = "6.29.0" + suffix
-  val finagleVersion = "6.30.0" + suffix
+  val libVersion = "1.16.0" + suffix
+  val utilVersion = "6.30.0" + suffix
+  val finagleVersion = "6.31.0" + suffix
   val mustacheVersion = "0.8.18"
 
   val jacksonVersion = "2.4.4"