Update for Scalatra 2.6

Author: takezoe

build.sbt

@@ -1,7 +1,7 @@
 val Organization = "io.github.gitbucket"
 val ProjectName = "gitbucket-gist-plugin"
 val ProjectVersion = "4.10.0"
-val GitBucketVersion = Option(System.getProperty("gitbucket.version")).getOrElse("4.18.0")
+val GitBucketVersion = Option(System.getProperty("gitbucket.version")).getOrElse("4.19.0-SNAPSHOT")
 
 lazy val root = (project in file(".")).enablePlugins(SbtTwirl)
 

src/main/scala/gitbucket/gist/controller/GistController.scala

@@ -2,7 +2,7 @@ package gitbucket.gist.controller
 
 import java.io.File
 import gitbucket.core.view.helpers
-import io.github.gitbucket.scalatra.forms._
+import org.scalatra.forms._
 
 import gitbucket.core.controller.ControllerBase
 import gitbucket.core.service.AccountService