"Table upgrade required..."

The row format is only different for the case where we have a very old MyISAM table with varchar fields, null fields and created with CHECKSUM=1
The table is usable, except that CHECKSUM TABLE will give a wrong result and CHECK TABLE will warn about this.

I added a test for this to warn when a table needs to be upgraded, but forgot to add a test that this was only relevant for tables with CHECKSUM=1
This is now fixed.



storage/myisam/ha_myisam.cc:
  Fixed wrong test.

git://github.com/Tokutek/ft-index.git
git://github.com/Tokutek/ft-engine.git
at the tag tokudb-7.1.6

Add charsets to the client API
(they are declared with MYSQL_PLUGIN_IMPORT, meaning the intention is to have them public)

MDEV-6091 mysqldump goes in a loop and segfaults if --dump-slave is specified and it cannot connect to the server

do_start_slave_sql() is called from maybe_exit().
We should not recurse when maybe_exit() is called for an error during do_start_slave_sql().
Also remove a meaningless (but safe) "goto err".

fixes #230

because it's not a handler convenience wrapper

added checkpoint duration to engine status #219

#110 turn off replace into and insert ignore optimizations when binlog format != statement (2nd try)