Patch 5.4.7/API changes

Changes

 * arg4's value for sender now returns player name - realm name instead of just the player name (e.g. "Arthas-Silvermoon")
 * arg2's value for author now returns player name - realm name instead of just the player name (e.g. "Arthas-Silvermoon")
 * I haven't checked all other CHAT_MSG_* events but its not unlikely they will also include realm names