Created extensions subdirectory for non-core additions to RxJava and

moved `SwingScheduler` into a new subproject `rxjava-swing`.

Author: jmhofer

extensions/rxjava-swing/build.gradle

@@ -0,0 +1,49 @@
+apply plugin: 'java'
+apply plugin: 'eclipse'
+apply plugin: 'idea'
+apply plugin: 'osgi'
+
+sourceCompatibility = JavaVersion.VERSION_1_6
+targetCompatibility = JavaVersion.VERSION_1_6
+
+dependencies {
+    compile project(':rxjava-core')
+    provided 'junit:junit:4.10'
+    provided 'org.mockito:mockito-core:1.8.5'
+}
+
+eclipse {
+  classpath {
+    // include 'provided' dependencies on the classpath
+    plusConfigurations += configurations.provided
+
+    downloadSources = true
+    downloadJavadoc = true
+  }
+}
+
+idea {
+	module {
+		// include 'provided' dependencies on the classpath
+		scopes.PROVIDED.plus += configurations.provided
+	}
+}
+
+javadoc {
+    options {
+        doclet = "org.benjchristensen.doclet.DocletExclude"
+        docletpath = [rootProject.file('./gradle/doclet-exclude.jar')]
+        stylesheetFile = rootProject.file('./gradle/javadocStyleSheet.css')
+        windowTitle = "RxJava Javadoc ${project.version}"
+    }
+    options.addStringOption('top').value = '<h2 class="title" style="padding-top:40px">RxJava</h2>'
+}
+
+jar {
+    manifest {
+        name = 'rxjava-swing'
+        instruction 'Bundle-Vendor', 'Netflix'
+        instruction 'Bundle-DocURL', 'https://github.com/Netflix/RxJava'
+        instruction 'Import-Package', '!org.junit,!junit.framework,!org.mockito.*,*'
+    }
+}

rxjava-core/src/main/java/rx/concurrency/SwingScheduler.java renamed to extensions/rxjava-swing/src/main/java/rx/concurrency/SwingScheduler.java

@@ -3,4 +3,5 @@ include 'rxjava-core', \
 'language-adaptors:rxjava-groovy', \
 'language-adaptors:rxjava-jruby', \
 'language-adaptors:rxjava-clojure', \
-'language-adaptors:rxjava-scala'
+'language-adaptors:rxjava-scala', \
+'extensions:rxjava-swing'