Note location of future development

Based on dain's comment in #34, note that this project has been obsoleted by aircompressor.

Author: dmlap

README.md

@@ -1,6 +1,8 @@
 # Snappy in Java
 
-This is a rewrite (port) of [Snappy](http://code.google.com/p/snappy/) writen in
+__NOTE: Future development of Snappy without JNI has moved to [aircompressor](https://github.com/airlift/aircompressor)__
+
+This is a rewrite (port) of [Snappy](http://code.google.com/p/snappy/) written in
 pure Java. This compression code produces a byte-for-byte exact copy of the output
 created by the original C++ code, and extremely fast.