init commit

Change-Id: Icc327edf9f78d5edb406c24e1981d3917df10302
change v2

Change-Id: I73325b83381dc2cab629746cef3190cdbb151b05
Change-Id: If4a7a9e245554ba786a1de8c8f38e6119994bf96
Merge pull request #2 from shanjing-inc/features_weather

增加天气预报模块