support FULLTEXT INDEX syntax

  1. remove Index_Comment in ShowIndex function
  2. remove mysql client deps in Makefile

  1. update vendor pingcap/parser
  2. Makefile add docker contain stop wait
  3. -report-type=rewrite when syntax error, print error info not empty

  RES.009 not consider about "and", "or"... Operator in
  BinaryOperationExpr

  column.Tp may be nil when checking

a new config arg 'min-cardinality' for index column selection

  chardet will detect input sql charset

  1. Makefile add `daily-quick` let test more fast
  2. Heuristic rule word lint
  3. FUN.001 add more logic, unstable now

  http://tech.dianwoda.com/2017/12/14/mysql-updateyu-ju-ge-jing-dian-de-keng/?hmsr=toutiao.io&utm_medium=toutiao.io&utm_source=toutiao.io

  1. etc/soar.blacklist add `use ?`
  2. blacklist use os.Getwd prefix
  3. update doc

  1. update vitess dependency
  2. explain database prefix check

  1. fix -config arg parse bug
  2. code & comment lint

  1. SplitStatement mulitstatement eof bug
  2. empty query by pass