Change /me emote formatting to pure italics, not underlined.

Review pending with Richard/Leyla

indra/newview/llchatitemscontainerctrl.cpp

@@ -187,7 +187,7 @@ void LLNearbyChatToastPanel::init(LLSD& notification)
 			msg_text->setText(mFromName, style_params);
 		}
 		mText = mText.substr(3);
-		style_params.font.style = "UNDERLINE";
+		style_params.font.style = "ITALIC";
 #define INFINITE_REFLOW_BUG 0
 #if INFINITE_REFLOW_BUG
 		// This causes LLTextBase::reflow() to infinite loop until the viewer

indra/newview/llimfloater.cpp

@@ -494,12 +494,12 @@ void LLIMFloater::updateMessages()
 				if (from.size() > 0)
 				{
 					append_style_params.font.style = "ITALIC";
-					chat.mText = from + " ";
+					chat.mText = from;
 					mChatHistory->appendWidgetMessage(chat, append_style_params);
 				}
 				
 				message = message.substr(3);
-				append_style_params.font.style = "UNDERLINE";
+				append_style_params.font.style = "ITALIC";
 				mChatHistory->appendText(message, FALSE, append_style_params);
 			}
 			else

indra/newview/llnearbychat.cpp

@@ -177,7 +177,7 @@ void	LLNearbyChat::addMessage(const LLChat& chat)
 			}
 			
 			message = message.substr(3);
-			append_style_params.font.style = "UNDERLINE";
+			append_style_params.font.style = "ITALIC";
 			mChatHistory->appendText(message, FALSE, append_style_params);
 		}
 		else

indra/newview/lltoastimpanel.cpp

@@ -64,7 +64,7 @@ LLToastIMPanel::LLToastIMPanel(LLToastIMPanel::Params &p) :	LLToastPanel(p.notif
 		style_params.font.style ="ITALIC";
 		mMessage->appendText(p.from + " ", FALSE, style_params);
 
-		style_params.font.style = "UNDERLINE";
+		style_params.font.style = "ITALIC";
 		mMessage->appendText(p.message.substr(3), FALSE, style_params);
 	}
 	else