Merge lp://staging/~stewart/drizzle/misc-cleanups into lp://staging/drizzle

drizzled/base.h (+0/-8)
drizzled/cursor.cc (+1/-0)
drizzled/cursor.h (+2/-2)
drizzled/field.h (+1/-1)
drizzled/ha_commands.cc (+0/-5)
drizzled/handler_structs.h (+4/-3)
drizzled/include.am (+2/-1)
drizzled/item/field.cc (+1/-0)
drizzled/item/subselect.cc (+1/-0)
drizzled/join.cc (+1/-0)
drizzled/key.cc (+1/-0)
drizzled/key.h (+2/-0)
drizzled/key_info.h (+5/-63)
drizzled/key_part_info.h (+61/-0)
drizzled/optimizer/key_field.cc (+1/-0)
drizzled/optimizer/quick_group_min_max_select.cc (+1/-0)
drizzled/optimizer/quick_group_min_max_select.h (+2/-0)
drizzled/optimizer/quick_range_select.h (+3/-0)
drizzled/optimizer/range.cc (+4/-2)
drizzled/optimizer/sum.cc (+1/-0)
drizzled/optimizer/table_read_plan.h (+3/-0)
drizzled/plugin/storage_engine.h (+1/-1)
drizzled/sql_select.cc (+1/-0)
drizzled/sql_select.h (+2/-0)
drizzled/sql_table.cc (+1/-0)
drizzled/sql_yacc.yy (+3/-3)
drizzled/statement/alter_table.cc (+1/-0)
drizzled/table.cc (+3/-2)
drizzled/table.h (+29/-2)
drizzled/table/instance/base.cc (+3/-18)
drizzled/table/instance/base.h (+1/-0)
drizzled/table/singular.cc (+1/-0)
drizzled/table_proto.cc (+6/-16)
plugin/innobase/handler/ha_innodb.cc (+2/-1)
plugin/innobase/handler/handler0alter.cc (+1/-0)
plugin/memory/ha_heap.cc (+2/-1)
plugin/myisam/ha_myisam.cc (+4/-3)
plugin/myisam/mi_range.cc (+2/-1)
plugin/myisam/mi_rkey.cc (+2/-1)
plugin/myisam/mi_rnext.cc (+3/-2)
plugin/myisam/mi_rnext_same.cc (+2/-1)
plugin/storage_engine_api_tester/storage_engine_api_tester.cc (+1/-1)
plugin/tableprototester/tableprototester.cc (+1/-1)