improvement :
- add new database schema  (skipFinger, fatherName, motherName)
- implement export & import new field (skipFinger, fatherName, motherName)
- add write/read dump file of Registration data on "Pending" page.
- add mapping model for new schema
- move all RAMS folder from Cache to Library to avoid data lost by iTunes.

bug fix :
- redundant movement Migrant data.
- photo previewing on family feature