Removed compiler warnings.
Build-tools/Do-compile:
Simple cleanup
include/mysql.h:
Use #include "" instead of include <>
mysql-test/t/innodb_handler.test:
Documented test
Change to be runnable from mysql
sql/mini_client.cc:
Removed dead code
sql/mysqld.cc:
Changed relay_log_space to ulonglong
sql/slave.cc:
Changed relay_log_space to ulonglong
Removed dead code
sql/slave.h:
Changed relay_log_space to ulonglong
sql/sql_acl.cc:
Removed not used variables
sql/sql_base.cc:
Removed not used variables
sql/sql_cache.cc:
Removed not used variables
sql/sql_select.cc:
Removed not used variables
vio/vio.c:
Re-order include files to remove compiler warnings