Meta server: change default for apppend placement to turn off master/slave taking into the account master / slave assignment in order to make write append work with default configuration with arbitrary replication. Add the configuration parameter description to meta server configuration file.
Chunk server: fix default setting with chunk server hello with authentication off, in order not to send file ids to the meta server. To enable chunk servers to make compatible with older meta server chunk server property chunkServer.meta.noFids = 1 cam be set in the chunk
server configuration file.