1. Upgrading to HTTP Core 4.3 (Migrated both NHTTP and PTT transports out of deprecated APIs)
2. Unified the logging mechanism used by NHTTP and PTT transports
3. Improved the HTTP transport logging mechanism, to make the configuration more fine grained
4. Unified the configuration mechanism used by NHTTP and PTT transports



git-svn-id: https://svn.apache.org/repos/asf/synapse/trunk@1512866 13f79535-47bb-0310-9956-ffa450edef68