since it's used by the check

Don't allow unix socket path to be truncated 

Fix warnings

the server dissapears
Check return code of 'mysql_ping'
Add "shutdown", call 'mysql_shutdown' on the current connection 

 - Code in DbugParse was reading from beyond end of the control string

after expected crash server restart. The test timeout process was killed
not restarted.

No more string matching

Don't log check_warnings to binlog

regardless of it's current value  

into  shellback.(none):/home/msvensson/mysql/mysql-5.1-new-rpl

into  pilot.mysql.com:/data/msvensson/mysql/mysql-5.1-rpl

Added waiting start/stop slave via primitives.

Fix for binlog_index test case: hide difference for paths from warning messages between Windows and Unix 

into  mysql.com:/home/ksm/mysql/bugs/commit-mysql-5.1-new-rpl-bug28772

into  pilot.mysql.com:/data/msvensson/mysql/mysql-5.1-rpl

into  pilot.mysql.com:/data/msvensson/mysql/mysql-5.1-mtr

into  mysql.com:/home/ksm/mysql/bugs/commit-mysql-5.1-new-rpl-bug30128

- avoid restart
- keep all in one file
- fix --check-testcase

Bug#28772, added waiting Until_Log_Pos when slave starting with UNTIL clause and then waiting stop of slave. 
It helps to avoid issues when slave starts too slowly.