added choice of : or = in config file
set case insensitive section names


mysql-test/ndb/ndb_config_2_node.ini:
  added alias MYSQLD for API
ndb/src/common/mgmcommon/ConfigInfo.cpp:
  added alias MYSQLD for API
ndb/src/common/mgmcommon/ConfigInfo.hpp:
  added alias MYSQLD for API
ndb/src/common/mgmcommon/InitConfigFileParser.cpp:
  added choice of : or = in config file