Merge branch 'master' of github.com:/hbnn/DataPackage
Merge branch 'whb' of github.com:/hbnn/DataPackage into whb
modify one fuction named pre_open in excel module,add two functions in
order to get last two month's data in Monthly module
modify one fuction named pre_open in excel module,add two functions in
order to get last two month's data in Monthly module
Merge branch 'whb' of github.com:hbnn/DataPackage into whb

Conflicts:
	demos/StatMonthly/Monthly.py
modify database insert
complete the script