Merge pull request #732 from garyrussell/INT-2823

* garyrussell-INT-2823:
  INT-2823 Add QueueChannelOperations
INT-2922 Fix TypeConverter Concurrency Issue

During initialization, it is possible for type conversion to fail because a second thread accesses a partially built list of PropertyEditors. This is because getDefaultEditor(Class) is not thread-safe.

* Add a test with mocks and spies to verify concurrent access to the method occurs before the fix, and not after the fix.
* Synchronize the call to getDefaultEditor(), when called from canConvert() and convertValue().
* Only synchronize the call until we have invoked the method at least once.
Merge pull request #739 from garyrussell/INT-2922

* garyrussell-INT-2922:
  INT-2922 Fix TypeConverter Concurrency Issue
INT-2126 Add TcpConnection Event Publisher

TcpConnectionEvent for OPEN, CLOSE, EXCEPTION.

<int-ip:tcp-event-inbound-channel-adapter />
INT-2871 Provide Mechanism to Find TCP Connections

https://jira.springsource.org/browse/INT-2871

Add getOpenConnectionIds() to Abstract Connection Factory

Also add closeConnection(String connectionID)
INT-2877 TCP Extension Improvements

Improvements to make extension easier.

* Add setCustomHeaders() to mapper.
* Add mapper to connection factory namespace parser.
* Add plumbing for stateful Deserializers.
INT-2872 Remove Deprecated Items in ip Module

- pool-size Attribute
- setScheduler
- TcpSendingMessageHandler.getConnection()

Deprecated attribute on TCP Connection Factory.
INT-2126 Add Event Type Enum

Provides type safety for event types.