changed creation_time to time_t to get around Qt4.7 dependency

cockatrice/src/remotedecklist_treewidget.cpp

@@ -207,7 +207,7 @@ void RemoteDeckList_TreeModel::addFileToTree(const ServerInfo_DeckStorage_TreeIt
 {
 	const ServerInfo_DeckStorage_File &fileInfo = file.file();
 	QDateTime time;
-	time.setMSecsSinceEpoch(fileInfo.creation_time());
+	time.setTime_t(fileInfo.creation_time());
 	
 	beginInsertRows(nodeToIndex(parent), parent->size(), parent->size());
 	parent->append(new FileNode(QString::fromStdString(file.name()), file.id(), time, parent));

common/pb/proto/serverinfo_deckstorage.proto

 message ServerInfo_DeckStorage_File {
-	optional uint64 creation_time = 1;
+	optional uint32 creation_time = 1;
 }
 
 message ServerInfo_DeckStorage_Folder {

servatrice/src/serversocketinterface.cpp

@@ -296,7 +296,7 @@ bool ServerSocketInterface::deckListHelper(int folderId, ServerInfo_DeckStorage_
 		newItem->set_name(query.value(1).toString().toStdString());
 		
 		ServerInfo_DeckStorage_File *newFile = newItem->mutable_file();
-		newFile->set_creation_time(query.value(2).toDateTime().toMSecsSinceEpoch());
+		newFile->set_creation_time(query.value(2).toDateTime().toTime_t());
 	}
 	
 	return true;
@@ -437,7 +437,7 @@ Response::ResponseCode ServerSocketInterface::cmdDeckUpload(const Command_DeckUp
 	ServerInfo_DeckStorage_TreeItem *fileInfo = re->mutable_new_file();
 	fileInfo->set_id(query.lastInsertId().toInt());
 	fileInfo->set_name(deckName.toStdString());
-	fileInfo->mutable_file()->set_creation_time(QDateTime::currentMSecsSinceEpoch());
+	fileInfo->mutable_file()->set_creation_time(QDateTime::currentDateTime().toTime_t());
 	rc.setResponseExtension(re);
 	
 	return Response::RespOk;