Add destruction of existing records so that new records will be alone
Refactor LocalStorage import into javascript
Move qml to subdir

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rename : qml-persistence.js => qml/qml-persistence.js
Added .hgignore
Added autodownloading of external dependencies to ./qml/vendor
Added Qt.quit() on mouse area click to sandbox

--HG--
extra : amend_source : 6ae5f5b9a99527ce5a934277295fb90e32441ebd
Added sync and sync.server to downloaded external dependencies
Start trying to integrate sync and sync.server, but not currently working