Fix pairing and game quitting issues with GFE 3.10

Limelight/Network/PairManager.m

@@ -38,7 +38,7 @@
         return;
     }
     if ([serverInfoResp isStatusOk]) {
-        if (![[serverInfoResp getStringTag:@"state"] hasSuffix:@"_SERVER_AVAILABLE"]) {
+        if ([[serverInfoResp getStringTag:@"state"] hasSuffix:@"_SERVER_BUSY"]) {
             [_callback pairFailed:@"You must stop streaming before attempting to pair."];
         } else if (![[serverInfoResp getStringTag:@"PairStatus"] isEqual:@"1"]) {
             NSString* appversion = [serverInfoResp getStringTag:@"appversion"];

Limelight/Network/ServerInfoResponse.m

@@ -26,7 +26,7 @@
     host.currentGame = [[self getStringTag:TAG_CURRENT_GAME] trim];
     
     NSString *state = [[self getStringTag:TAG_STATE] trim];
-    if ([state hasSuffix:@"_SERVER_AVAILABLE"]) {
+    if (![state hasSuffix:@"_SERVER_BUSY"]) {
         // GFE 2.8 started keeping currentgame set to the last game played. As a result, it no longer
         // has the semantics that its name would indicate. To contain the effects of this change as much
         // as possible, we'll force the current game to zero if the server isn't in a streaming session.