Sanity check in twentyeleven_get_theme_options() -- if the option doesn't...

Sanity check in twentyeleven_get_theme_options() -- if the option doesn't exist, return the default options instead. We already instantiate the option on admin_init. fixes #17686.

git-svn-id: https://core.svn.wordpress.org/trunk@18141 1a063a9b-81f0-0310-95a4-ce76da25c4cd