[SQLObject] Patch: import sqlite3 in Python 2.5

[Humberto D. <adm...@di...>]

Hi, guys!

  I'm sending a little patch I made for sqlobject: the sqlite module was ad=
ded to Python 2.5 stdlib as "sqlite3", and SQLObject wasn't finding it.
  I think it would too be a good idea to rename the variable "using_sqlite2=
" to "using_sqlite3".

--=20
Humberto Di=F3genes
http://humberto.digi.com.br