#180 avoid thd_proc_info pointing to invalid info (like when a function sets proc info with a local variable and then returns)

Tokutek/mysql56#54 fix to tokudb::external_lock for the alter table assert bug, plus a rewrite of the tokudb debug tracing

#122 change default compression to zlib and add a session variable to control create info row format

tokutek/ft-index#80 tokutek/ft-engine#94 add tokudb_loader_memory_size system variable that controls the size of each loader memory size

tokutek/ft-engine#111 tokutek/ft-index#74 merge the tokumx error message for transparent huge pages into tokudb