Bug#11733 (COMMITs should not happen if read-only is set)
Bug#22009 (Can write to a read-only server under some circumstances)

See the work log for details

The change consist of
a) acquiring the global read lock in SET GLOBAL READONLY
b) honoring opt_readonly in ha_commit_trans(),
c) honoring opt_readonly in mysql_lock_tables().

a) takes care of the server stability,
b) makes the transactional tables safe (Bug 11733)
c) makes the non transactional tables safe (Bug 22009)

into  alik.:/mnt/raid/alik/MySQL/devel/5.1-rt

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  mysql.com:/Users/kent/mysql/bk/lic/my51-lic

into  mysql.com:/Users/kent/mysql/bk/lic/my50-lic

into  mysql.com:/Users/kent/mysql/bk/lic/my41-lic

  Added LICENSE.mysql, removed LICENSE.doc README.NW.
  Removed obselete section about MySQLEULA.txt and README.NW.
README:
  Added reference to the EXCEPTIONS-CLIENT file.
  Changed reference to the commercial license file.
  Corrected references into chapters in the manual.
.del-MySQLEULA.txt~4a1afd9284f9be5a:
  Delete: Docs/MySQLEULA.txt

into  outpost.site:/home/cps/mysql/trees/mysql-5.1-runtime

into  mysql.com:/Users/kent/mysql/bk/mysql-5.1

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

 - Readd --skip-bdb when valgrinding

 - Fix memory leak in vio_VioSSLFD that occurs when one of the calls to SSL_* function fails. As in the "ssl_des"
   test case where the server is currently not supposed to be able to read the specific cert/key file.
 - Change error message to be generic as it's called both from server and client code.

into  alik.:/mnt/raid/alik/MySQL/devel/5.1-rt-merged-2

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

Correct faulty commit, the opt_tastcase_timeout value is in minutes, to it need to be multiplied with 60 before ping passed to mtr_timer_start 

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1-maint

Make --mem settable with environment variable MTR_MEM and make it possible to pass the directory to use. I.e --mem=<directory>  

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  mysql.com:/usr/home/ram/work/mysql-5.1-maint

into  mysql.com:/usr/home/ram/work/bug19736/my50-bug19736

into  bk-internal.mysql.com:/data0/bk/mysql-5.1-arch

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint

Use better wording

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint