Slight backup

This small program allows you to backup and restore specific data:

* SMS (only if the standard application is used)
* Call-logs (no voicemails)
* Settings (experimental)
* Bookmarks (only stock browser; no folders are supported)
* Playlists
* User dictionaries

There is experimental support for Contacts, performed via the internal vcs
capabilities.

The backups are stored unencrypted in an editable location on the SD card.