Signature will kick up its heels with "West Side Story," "La Cage" and "Road Show"
You knew one day we'd get another look at Stephen Sondheim's long-evolving musical "Bounce," as it was called when it appeared in 2003 at the Kennedy Center, which originally commissioned it about two decades ago. Re-tooled as "Road Show," and also called "Gold!" and "Wise Guys" as it tried to find itself " there's a real saga behind all this development " Gary Griffin will stage it at Signature Theatre, long the Was…