clean up some configurations parameters

Hotfix/taos tools

add multi-threading test case

set pNode->next to null, since item may be write into queue multiple …

[TD-450]

* develop:
  [TD-439]
  fix definite lost while show command failed
  fix cq coredump
  fix resource leak in mnodeShow.c
  [TD-444] fix alter native role error
  fix resource leak in dnodeVWrite.c
  [TD-440] fix resource leak in mnodeTable.c
  change some interface
  fix commit coredump data lost bug
  TD-354

fix resource leak in mnodeShow.c

fix resource leak in dnodeVWrite.c

[TD-440] fix resource leak in mnodeTable.c

[TD-439]

TD-354

* develop: (23 commits)
  [TD-335]  rename some functions
  [TD-335] log
  [TD-335] fix bug while get mnode ipset
  [add cluster sim case]
  [TD-354] add sql parser for stream table
  [td-409]fix bug that callback function is not set correctly in sub-insert object.
  td-436: update limit in document
  fix resource leak in mgmtTable.c
  fix incorrect length in nchar conversion
  fix possible dead loop in shellPrintNChar
  [TD-335] rename mgmt to mnode
  [TD-335] sort include file
  [TD-335] fix bug while auto create table
  [TD-335] remove log
  [TD-335] fix refcount error
  [TD-335] fix invalid read in mwrite queue
  [TD-335] refact SMnodeMsg
  [TD-335] optimize mnode queue
  [TD-335] message put into peer queue
  [TD-335] first compiler vresion
  ...

[TD-446]

[TD-445]