database module
Remove cache module
simplify init
Emit "exit" event when process is about to exit
Fixed init error when not init
Delete old modules
Merge code
Delete old plugins
New processor API
Fixed database init error
Database module updated
New plugins
Database: Update schema
Database: import & export
simplify init
Fixed Schema.restore infects original data
Don't load database when init
Processor: Add params
Database: Fixed Collection.findOne
Database: copy property not in schema