Add stubs for async ops on JVM.
Fix Ops.bindsock to test instanceof IIOBindable instead of ServerSocketHandle.
Implement socket asyncconnect, asynclisten on JVM.
First cut at timer cancelling on JVM.
WIP async read, write ops on JVM.
Fix async readChars on JVM.
Implement failed callbacks in async IO on JVM.
Swallow AsynchronousCloseException and treat it as EOF.
Implement asyncwritebytes on JVM.
Implement asyncreadbytes on JVM. Extracted Buffers utils from Ops.java
Need to copy bytes out of ByteBuffer, not reference internal array.
Merge branch 'master' of github.com:perl6/nqp into async_ops
Merge pull request #167 from perl6/async_ops

Implement socket async ops on JVM.