Added better results (35% instead of 5% speedup) to reorder.c observed on Arun's laptop with faster RAM, bus etc than my netbook.
Added better results (35% instead of 5% speedup) to reorder.c observed on Arun's laptop with faster RAM, bus etc than my netbook.

vlulla/data.table,jangorecki/data.table,Rdatatable/data.table,Rdatatable/data.table,vlulla/data.table,Rdatatable/data.table,jangorecki/data.table,vlulla/data.table,vlulla/data.table,Rdatatable/data.table,jangorecki/data.table,jangorecki/data.table