2.x Initialization

- clearing out rx.* packages to start building 2.x in io.reactivex
- starting fresh since the fundamental design will change to adopt ReactiveStreams interfaces and require touching virtually every file

Author: benjchristensen

README.md

@@ -4,6 +4,18 @@ RxJava is a Java VM implementation of [Reactive Extensions](http://reactivex.io)
 
 It extends the [observer pattern](http://en.wikipedia.org/wiki/Observer_pattern) to support sequences of data/events and adds operators that allow you to compose sequences together declaratively while abstracting away concerns about things like low-level threading, synchronization, thread-safety and concurrent data structures.
 
+#### Version 2.x
+
+Version 2.x and 1.x will live side-by-side for several years. They will have different namespaces (io.reactivex vs rx). 
+
+The purpose for 2.x is:
+
+- leverage Java 8+ features
+- [Reactive Streams](http://www.reactive-streams.org) compatibility
+- performance gains through design changes learned through the 1.x cycle
+
+#### Version 1.x
+
 - Zero Dependencies
 - < 800KB Jar
 - Java 6+ & [Android](https://github.com/ReactiveX/RxAndroid) 2.3+
@@ -27,6 +39,8 @@ Learn more about RxJava on the <a href="https://github.com/ReactiveX/RxJava/wiki
 
 ## Versioning
 
+Version 2.x has started development. 
+
 Version 1.x is now a stable API and will be supported for several years.
 
 Minor 1.x increments (such as 1.1, 1.2, etc) will occur when non-trivial new functionality is added or significant enhancements or bug fixes occur that may have behavioral changes that may affect some edge cases (such as dependence on behavior resulting from a bug). An example of an enhancement that would classify as this is adding reactive pull backpressure support to an operator that previously did not support it. This should be backwards compatible but does behave differently.

src/main/java/rx/internal/util/SynchronizedSubscription.java renamed to src/main/java/io/reactivex/Observable.java

@@ -1,5 +1,5 @@
 /**
- * Copyright 2014 Netflix, Inc.
+ * Copyright 2015 Netflix, Inc.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
  * compliance with the License. You may obtain a copy of the License at
@@ -10,26 +10,8 @@
  * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
  * the License for the specific language governing permissions and limitations under the License.
  */
-package rx.internal.util;
+package io.reactivex;
 
-import rx.Subscription;
-
-public class SynchronizedSubscription implements Subscription {
-
-    private final Subscription s;
-
-    public SynchronizedSubscription(Subscription s) {
-        this.s = s;
-    }
-
-    @Override
-    public synchronized void unsubscribe() {
-        s.unsubscribe();
-    }
-
-    @Override
-    public synchronized boolean isUnsubscribed() {
-        return s.isUnsubscribed();
-    }
+public class Observable {
 
 }