doc: add missing client documentation.

Author: Christian Hergert

doc/mongoc_client_get_max_bson_size.txt

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+mongoc_client_get_max_bson_size(3)
+==================================
+
+
+NAME
+----
+mongoc_client_get_max_bson_size, mongoc_client_get_max_message_size - get max sizes as related to the server
+
+
+SYNOPSIS
+--------
+[source,c]
+-----------------------
+int32_t mongoc_client_get_max_bson_size    (mongoc_client_t *client);
+int32_t mongoc_client_get_max_message_size (mongoc_client_t *client);
+-----------------------
+
+
+DESCRIPTION
+-----------
+The _mongoc_client_get_max_bson_size()_ returns the maximum bson document size
+allowed by the cluster. Until a connection has been made, this will be the
+default of 16Mb.
+
+The _mongoc_client_get_max_document_size()_ returns the maximum wire protocol
+message size. Until a connection has been made, this will be the default of
+40Mb.
+
+
+SEE ALSO
+--------
+linkmongoc:mongoc_client[7]
+
+
+AUTHORS
+-------
+
+This page was written by MongoDB, Inc.

doc/mongoc_client_get_max_message_size.txt

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+mongoc_client_get_max_bson_size.txt

doc/mongoc_client_get_server_status.txt

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+mongoc_client_get_server_status(3)
+==================================
+
+
+NAME
+----
+mongoc_client_get_server_status - helper for the serverStatus command
+
+
+SYNOPSIS
+--------
+[source,c]
+-----------------------
+bool mongoc_client_get_server_status (mongoc_client_t     *client,
+                                      mongoc_read_prefs_t *read_prefs,
+                                      bson_t              *reply,
+                                      bson_error_t        *error);
+-----------------------
+
+
+DESCRIPTION
+-----------
+The _mongoc_client_get_server_status()_ function will call the serverStatus
+command on a MongoDB server. _read_prefs_ can be used to specify the type
+of server you wish to connect to.
+
+The result is stored in _reply_. You must always call _bson_destroy()_ to
+cleanup the result document stored in _reply_, even upon failure.
+
+false is returned up error, otherwise true.
+
+
+ERRORS
+------
+Errors are reported via _error_ and _reply_.
+
+
+SEE ALSO
+--------
+linkmongoc:mongoc_client[7]
+
+
+AUTHORS
+-------
+
+This page was written by MongoDB, Inc.