yui/yui3 — pull request #603 by apipkin (2013-04-11 17:25:10+00:00)
Title: Fix #583. Allow upper and lowercase `to` values for `convert()`. Also re...

Allow upper and lowercase `to` values for `convert()`. Also return original value if an invalid `to` value is provided.

Fixes https://github.com/yui/yui3/issues/583

Ping @ericf