Merge pull request #56 from csmith/circle

Add support for building javadoc.

circle.yml

     - git fetch --tags
     - git submodule update --init --remote
 
-dependencies:
-  override:
-    - ./gradlew --stacktrace --parallel client:dependencies plugins:dependencies
-
 test:
   override:
-    - ./gradlew --stacktrace --parallel jar test client:fatjar
+    - >
+      if [ -n "${BUILD_JAVADOC}" ]; then
+        ./gradlew --stacktrace packageJavadoc;
+      else
+        ./gradlew --stacktrace --parallel jar test client:fatjar;
+      fi
 
 general:
   artifacts:
     - plugins/dist-versioned
     - client/build/libs
+    - build/libs/dmdirc-javadoc.jar
 

javadoc.gradle

         classpath = files(allprojects.collect { it.sourceSets.main.compileClasspath })
         destinationDir = file("${buildDir}/docs/javadoc")
     }
+
+    task packageJavadoc(type: Jar, dependsOn: 'javadoc') {
+        from project.aggregateJavadoc.destinationDir
+        classifier = 'javadoc'
+    }
 }