DBI 1.2.3

Bug fixes

• dbQuoteLiteral() uses the format "%Y-%m-%d %H-%M-%S%z" which is understood by more databases (#467, #474).

Documentation

• Use relational-data.org as a replacement for relational.fit.cvut.cz.
• Set BS version explicitly for now (@maelle, #478).
• Include dbGetInfo() in the spec (#477).
• Fix typos (@salim-b, #469, @MichaelChirico, #482).