Bump version to 1.6.0

Author: mrkm4ntr

README.md

@@ -12,6 +12,7 @@ Download jar file from [the release page](https://github.com/mrkm4ntr/gitbucket-
 
 Plugin version|GitBucket version
 :---|:---
+1.6.x|4.26.0
 1.5|4.19.x
 1.4|4.11.x
 1.3|4.10.x

build.sbt

@@ -1,6 +1,6 @@
 val Organization = "com.github.mrkm4ntr"
 val Name = "gitbucket-network-plugin"
-val Version = "1.5"
+val Version = "1.6.0"
 
 lazy val root = (project in file(".")).enablePlugins(SbtTwirl)