Add backup. Close #104
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tiny typo fix
Merge pull request #110 from tpltnt/master

tiny typo fix
Update sqlite to 3.8.4.1.

Updating to 3.8.4.1 fixes some minor performance problems and also gains support
for CTEs (common table expressions).
Merge pull request #114 from jkl1337/master

Update sqlite to 3.8.4.1.
Merge remote branch 'upstream/master' into tmp-30639