update dependencies to the latest version.

build.sbt

@@ -1,24 +1,24 @@
 val Organization = "fr.brouillard.gitbucket"
 val ProjectName = "gitbucket-announce-plugin"
-val ProjectVersion = "1.6.0"
+val ProjectVersion = "1.7.0"
 
 lazy val root = (project in file(".")).enablePlugins(SbtTwirl)
 
 organization := Organization
 name := ProjectName
 version := ProjectVersion
-scalaVersion := "2.12.1"
+scalaVersion := "2.12.2"
 
 libraryDependencies ++= Seq(
-  "io.github.gitbucket"   %% "gitbucket"            % "4.10.0"  % "provided",
-  "io.github.gitbucket"   % "solidbase"             % "1.0.0"   % "provided",
+  "io.github.gitbucket"   %% "gitbucket"            % "4.13.0"  % "provided",
+  "io.github.gitbucket"   % "solidbase"             % "1.0.2"   % "provided",
   "com.typesafe.play"     %% "twirl-compiler"       % "1.3.0"   % "provided",
   "org.apache.commons"    % "commons-email"         % "1.4"     % "provided",
   "com.sun.mail"          % "javax.mail"            % "1.5.2"   % "provided",
   "javax.servlet"         % "javax.servlet-api"     % "3.1.0"   % "provided"
 )
 
 scalacOptions := Seq("-deprecation", "-feature", "-language:postfixOps", "-Ydelambdafy:method", "-target:jvm-1.8")
-javacOptions in compile ++= Seq("-target", "7", "-source", "7")
+javacOptions in compile ++= Seq("-target", "8", "-source", "8")
 
-useJCenter := true
+useJCenter := true

project/build.properties

@@ -1 +1 @@
-sbt.version = 0.13.12
+sbt.version = 0.13.15

src/main/scala/Plugin.scala

@@ -18,6 +18,7 @@ class Plugin extends gitbucket.core.plugin.Plugin {
     , new Version("1.4.0")
     , new Version("1.5.0")
     , new Version("1.6.0")
+    , new Version("1.7.0")
   )
 
   override val systemSettingMenus: Seq[(Context) => Option[Link]] = Seq(