Also, moved some of the code out of handler.h and into partition specific files for better
separation.
Also, moved some of the C funcs into partition_info as formal C++ methods
It is ok for a partitioned table to have only 1 partition. This test is just to show that
doing the ALTER TABLE ADD PARTITION doesn't crash the server.
partition_mgm_err.result:
Added result block for test of bug #15820
partition_mgm_err.test:
Added test block for bug #15820
Optimised version of ADD/DROP/REORGANIZE partitions for
non-NDB storage engines.
New syntax to handle REBUILD/OPTIMIZE/ANALYZE/CHECK/REPAIR partitions
Quite a few bug fixes