resolve_query_type, traverse through the list of items of thd->free_list, identify functions and reason query type according to the function type. This phase can only increase the restrictiviness level of the query.
query_classifier.h
Added new query type QUERY_TYPE_LOCAL_READ, for functions that can be executed in Maxscale. This type is the least restrict
ive query type. It is not used currently.
testmain.c
Added a few test cases and fixed expected return values for query type tests.
readwritesplit.c
polish
skygw_debug.h
Added string macro for Item types.
Removed embedded server startup parameter '--skip-innodb' and replaced TRUE, and FALSE with true and false, respectively.
gateway.c
Removed embedded server startup parameter '--skip-innodb' because libmysqld inside MariaDB 5.5.33 + doesn't start with that paramter.
