Bump to GitBucket 4.17.0

Author: takezoe

build.sbt

@@ -7,7 +7,7 @@ version := "1.0.0"
 scalaVersion := "2.12.2"
 
 libraryDependencies ++= Seq(
-  "io.github.gitbucket" %% "gitbucket"         % "4.17.0-SNAPSHOT" % "provided",
+  "io.github.gitbucket" %% "gitbucket"         % "4.17.0" % "provided",
   "org.fusesource.jansi" % "jansi"             % "1.16",
   "com.typesafe.play"   %% "twirl-compiler"    % "1.3.0"  % "provided",
   "javax.servlet"        % "javax.servlet-api" % "3.1.0"  % "provided"