generalization of mtr to support suite.pm extensions:

* no automatic --loose-skip-innodb added by mtr based on the test name.
  instead loose-skip-innodb is now in the default_mysqld.cnf
* have_innodb_plugin.inc is changed to give a verbose "skip" message
  (instead of "require: true")
* My::Suite class. It's support in mtr, and everywhere
* support for suite.pm
* when sorting tests, take combinations into account
* support for SUITENAME_COMBINATIONS
* no special treatment for innodb_plugin in mtr_cases.pm
* two special pre-created config groups: ENV and OPT
* allow option names to start from #
* allow magic option to have an argument
* remove dead code
* fix @-substitution to works as expected
* new processes take the value of $opt_verbose automatically, no need to pass it to a constructor
* innodb_plugin suite uses suite.pm and combinations file to test as much as possible
  (innodb plugin, xtradb plugin, xtradb static - whatever available)
* besides test-master.opt and test-slave.opt a test.opt file is also
  loaded, both for master and slave
* .opt files for all included files are loaded too
* progress report in the xterm titlebar

mysql-test/suite/rpl_ndb/t/rpl_ndb_2innodb-slave.opt

@@ -1 +1 @@
---innodb --default-storage-engine=innodb --ndbcluster=0
+--loose-innodb --default-storage-engine=innodb --ndbcluster=0

mysql-test/suite/rpl_ndb/t/rpl_ndb_2other-slave.opt

@@ -1 +1 @@
---innodb --loose-ndbcluster=OFF --log-slave-updates=0
+--loose-innodb --loose-ndbcluster=OFF --log-slave-updates=0

mysql-test/suite/rpl_ndb/t/rpl_ndb_circular_2ch.cnf

@@ -2,15 +2,12 @@
 
 [mysqld.1.1]
 server-id= 1
-log-bin
 
 [mysqld.2.1]
 server-id= 1
-log-bin
 
 [mysqld.1.slave]
 server-id= 2
-log-bin
 skip-slave-start
 
 [mysqld.2.slave]
@@ -21,7 +18,6 @@ master-password=	@mysqld.2.1.#password
 master-user=		@mysqld.2.1.#user
 master-connect-retry=	1
 init-rpl-role=		slave
-log-bin
 skip-slave-start
 ndb_connectstring=	@mysql_cluster.slave.ndb_connectstring
 

mysql-test/suite/rpl_ndb/t/rpl_ndb_innodb2ndb-master.opt

@@ -1 +1 @@
---innodb
+--loose-innodb

mysql-test/suite/rpl_ndb/t/rpl_ndb_innodb_trans-slave.opt

@@ -1 +1 @@
---innodb
+--loose-innodb

mysql-test/suite/rpl_ndb/t/rpl_ndb_mixed_engines_transactions-master.opt

@@ -1 +1 @@
---innodb
+--loose-innodb

mysql-test/suite/rpl_ndb/t/rpl_ndb_mixed_engines_transactions-slave.opt

@@ -1 +1 @@
---innodb
+--loose-innodb

mysql-test/suite/rpl_ndb/t/rpl_ndb_mixed_tables-master.opt

@@ -1 +1 @@
---innodb --ndbcluster
+--loose-innodb --ndbcluster

mysql-test/suite/rpl_ndb/t/rpl_ndb_mixed_tables-slave.opt

@@ -1 +1 @@
---innodb --ndbcluster --replicate-ignore-table=mysql.ndb_apply_status
+--loose-innodb --ndbcluster --replicate-ignore-table=mysql.ndb_apply_status

mysql-test/suite/rpl_ndb/t/rpl_ndb_stm_innodb-master.opt

@@ -1 +1 @@
---innodb --default-storage-engine=innodb
+--loose-innodb --default-storage-engine=innodb