This adds the API implementation for the read, write, number of
panding flushes and memtable switch count.
The implementation uses a helper function to perform map and map_reduce
on column_family.
The get_uuid helper method now supports both colon notations (i.e.
either as a ":" or as %3A)
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
cea73277ca