Added javadocJar task

Author: rjrudin

build.gradle

@@ -39,6 +39,11 @@ task sourcesJar(type: Jar, dependsOn: classes) {
   from sourceSets.main.allJava
 }
 
+task javadocJar(type: Jar, dependsOn: javadoc) {
+	classifier "javadoc"
+	from file(javadocsDir + "/" + project.name)
+}
+
 javadoc.destinationDir = file(javadocsDir + "/" + project.name)
 javadoc.failOnError = false
 
@@ -51,14 +56,17 @@ publishing {
       from components.java
       artifact sourcesJar
     }
+	  mavenJavadoc(MavenPublication) {
+		  artifact javadocJar
+	  }
   }
 }
 
 if (project.hasProperty("myBintrayUser")) {
   bintray {
     user = myBintrayUser
     key = myBintrayKey
-    publications = ['mainJava', 'sourcesJava']
+    publications = ['mainJava', 'sourcesJava', 'mavenJavadoc']
     pkg {
       repo = 'maven'
       name = project.name