SQLite now on jhbuild

[Luca Ferretti <elle uca libero it>]

I've just added a "sqlite3" module to jhbuild.

See http://svn.gnome.org/viewvc/jhbuild?view=revision&revision=2181 for
details

Let me know if we are planning to use another sqlite3 version (for
example, sqlite.org says new code should use version 3.6.0, but it's
still in Beta or RC and it seems there are some incompatibilities)
and/or if there are other modules that needs sqlite as dep.