bump gitbucket to 3.13

Author: yaroot

build.sbt

@@ -2,7 +2,7 @@ organization  := "gitbucket"
 
 name          := "pages-plugin"
 
-version       := "0.3"
+version       := "0.4"
 
 scalaVersion  := "2.11.7"
 
@@ -13,6 +13,6 @@ resolvers += Resolver.jcenterRepo
 resolvers += "amateras-repo" at "http://amateras.sourceforge.jp/mvn/"
 
 libraryDependencies ++= Seq(
-  "gitbucket"          % "gitbucket-assembly" % "3.12.0"  % "provided",
+  "gitbucket"          % "gitbucket-assembly" % "3.13.0"  % "provided",
   "javax.servlet"      % "javax.servlet-api"  % "3.1.0"   % "provided"
 )