Change of basic data structure in master, remove of database. fix bugs due to passing reference of list as parameters to functions. Tested until step of mapping.
fix typos

Conflicts:

	wukong/master/wkpf/mapper.py
fix bug in handling wulinks
adding java folder under src/app/wkdeploy and .gitignore inside it
apply new data structure for deployment
no forced discovery before mapping
Merge branch 'release0.2' of https://github.com/wukong-m2m/wukong-darjeeling into release0.2