[Feature] - build for LRFM Module
L : the number of time periods (such as days) from the first purchase to the last purchase in the database. [last order date - first order date]
R : the number of periods since the last purchase for days. [today - last order date]
F : the number of purchases made in a given time period. [count(order)]
M : the total amount of the money spent during a given time period [sum(order price)]
[Refactor] - add memo
[File Info] - remove this file
[Refactor] - update code
1.inherited the MigoLuigiHdfs instead of luigi.hadoop.JobTask
2.remove use_hadoop variable (it already exists in MigoLuigHdfs)
3.use keep_time variable instead of is_delete
4.use src instead of source
5.use dest instead of destination
6.inherited the remove_files instead of initialized
7.use the MIGO_STAMP_FOR_ERROR_RECORD variable for "Error" words
Merge branch 'NES_LRFM' of github.com:migocorp/athena into NES_LRFM
Merge pull request #15 from migocorp/NES_LRFM

Nes lrfm