* fixed static module
* solve conflict
* Add Distribution base class, Uniform class and Normal class
* release Distribution class and Normal, Uniform class
* Add Doc args explaination
* save distributions.py and process in distribution.py
* delete useless function in test_distribution
* Add NormalNumpy test class
* Add probs in NormalNumpy
* add distribution to paddle init
* Add Distribution base class and name attribute unittest
* Change Doc
* Change Doc
* adjust format
* Fixed Doc Code
* implement probs and change Variable to Tensor
* Add name for all functions and add name unittest
* support int datatype
* Add dynamic mode
* optimize test_distribution static and dygraph
pangyoki