Fix the ordered list regex. Only one letter is allowed before the dot,
e.g. {{{ a. item 1 b. item 2 }}}
but not: {{{ This is not a numbered list. Just a small quoted paragraph. }}}
Still, roman numbered lists should work {{{ i. item 1 ii. item 2 iii. item 3 }}}
Follow-up to r3162.
Authored by: cboos 2006-04-21
Parent: [r3234]
Child: [r3236]
