[dw-free] Allow importing of your journal from another LiveJournal-based site.

[mark]

[commit: http://hg.dwscoalition.org/dw-free/rev/821e7159136b]

http://bugs.dwscoalition.org/show_bug.cgi?id=114

More work on the importer. Enable importing friend groups, friends, and
entries. This is still very experimental and needs a way to bubble up
errors to the user.

Patch by mark.

( Diff: 8 files changed. )