Add cython 0.20 as dependency
Improve installation script
Improve installation script
Update Readme for recommendation of OSes
Update Readme for recommendation of OSes
Merge branch 'master' of https://github.com/hbhzwj/SADIT
BugFix: make sadit be able to run in other folders
Remove ROOT variable from TimeVaryingSimExample.py
Refactor: move check_pipe_para to sadit.util
Update add shift to value
Make customization of Generators to be more flexible

Now the TYPE attribute of generator descriptor is a string template in
which the name of parameters can be customized using $. The backward
compatibability is maintained.
Give hint when user specify anomaly to change a parameter that doesn't exist
Minor update
Add dir parameter to the simulation experiement
Add an example config script to simulate flow whose sizes are lognormal.
Make all imports of Detector module to refer to top module. Prep step to extract Detect module
Remove Detector folder
Add GAD as submodule as rename it as Detector. Update DetectConfig in Example folder