bump gitbucket to 4.2.0

Author: yaroot

build.sbt

@@ -7,10 +7,10 @@ resolvers += Resolver.jcenterRepo
 resolvers += "amateras-repo" at "http://amateras.sourceforge.jp/mvn/"
 
 libraryDependencies ++= Seq(
-  "gitbucket"          % "gitbucket-assembly" % "4.0.0"   % "provided",
+  "gitbucket"          % "gitbucket-assembly" % "4.2.0"   % "provided",
   "javax.servlet"      % "javax.servlet-api"  % "3.1.0"   % "provided"
 )
 
 // bintrayReleaseOnPublish in ThisBuild := false
 bintrayOmitLicense := true
-bintrayRepository := "gitbucket-pages-plugin"
+bintrayRepository := "gitbucket-pages-plugin"