DB-813 add an interrupt callback to the analyze cursor to allow early termination, plus detect garbage rows during analyze scan

DB-793 add debug return prints for scan_time, read_time, key_read_time, and index_only_read_time to help debug query plan issues

DB-802 make.mysql.bash should extract and use the tokudb version as the git tag.  there was a broken RE

DB-781 check killed in tokudb get_next to terminate a big partition copy.  should be done in partition storage engine, however

DB-787 the tokudb_report_fractal_tree_info_for_db function can leak a db on an error path where db->open fails