INT-2996 Fix Class and Package Cycles

INT-2996 Fix Package Cycle

Move interface ...store.MetadataStore to ...store.metadata.

INT-2996 Fix Class Tangle

TcpConnectionEvent incorrectly referenced the
concrete TcpConnectionSupport instead of TcpConnection.
Merge pull request #788 from garyrussell/INT-2996

* garyrussell-INT-2996:
  INT-2996 Fix Class and Package Cycles
INT-2982 Add Syslog Inbound Channel Adapter

* Supports UDP/TCP syslog messages.
* See docbook patch for more information.

For reference see: https://jira.springsource.org/browse/INT-2982
Merge pull request #780 from garyrussell/INT-2982

* garyrussell-INT-2982:
  INT-2982 Add Syslog Inbound Channel Adapter
INT-2892 Add 'local-filter' to (S)FTP Adapters

Allow the replacement of the default AcceptOnceFileListFilter.
Merge pull request #789 from garyrussell/INT-2892

* garyrussell-INT-2892:
  INT-2892 Add 'local-filter' to (S)FTP Adapters
INT-2980 Jdbc Message Store: Polling Wrong Message

* Add Join to JDBC Query
* Add MySql-specific tests
* INT-2987 - MessageStore MySQL - Support Fractional Seconds
  - Update MySql Connector version to 5.1.24
  - Add DDL scripts for MySql versions 5.6.4 and higher

INT-2980 - Check also for Regions

* Add test

INT-2980/INT-2987 - Add Documentation

INT-2980 - Doc: Add info to What's New Section
Merge pull request #781 from ghillert/INT-2980