Griffin Documents Updated Align with 0.1.6-incubating

[Lionel Liu <li...@apache.org>]

Hi all,


We've updated most of Griffin's documents, align with the latest version 0.1.6-incubating.


The updated documents including: 


Wiki:
- Roadmap: https://cwiki.apache.org/confluence/display/GRIFFIN/0.+Roadmap
- Relationship of Measure, Scheduler, Job and Metric: https://cwiki.apache.org/confluence/display/GRIFFIN/1.+Relationship+of+Measure%2C+Schedule%2C+Job+and+Metric
- Griffin Job Flow: https://cwiki.apache.org/confluence/display/GRIFFIN/2.+Griffin+Job+Flow
- Griffin Measure DSL and Process Design: https://cwiki.apache.org/confluence/display/GRIFFIN/3.+Griffin+Measure+DSL+and+Process+Design
- Griffin Job Scheduler Design: https://cwiki.apache.org/confluence/display/GRIFFIN/5.+Griffin+Job+Scheduler+Design
- Apache Griffin DSL Guidance: https://cwiki.apache.org/confluence/display/GRIFFIN/7.+Apache+Griffin+DSL+Guidance
- Development: https://cwiki.apache.org/confluence/display/GRIFFIN/0.+Development
- Batch Accuracy Use Case Guide: https://cwiki.apache.org/confluence/display/GRIFFIN/Batch+Accuracy+Use+Case+Guide
- Accuracy Usage: https://cwiki.apache.org/confluence/display/GRIFFIN/1.+Accuracy+Usage


Github:
- measure module docs: https://github.com/apache/incubator-griffin/tree/master/griffin-doc/measure
- service module docs: https://github.com/apache/incubator-griffin/tree/master/griffin-doc/service
- docs for docker usage: https://github.com/apache/incubator-griffin/tree/master/griffin-doc/docker


There're still some documents not finished yet, and we need some more time to update them:


Github: 
- UI module docs: https://github.com/apache/incubator-griffin/tree/master/griffin-doc/ui



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Regards,
Lionel, Liu