Twenty Eleven: fix changes in r17846, props nacin - see #17198

 * Simplify WP_Query call to pass args directly
 * Don't use Yoda Conditions for <, >, <=, >= as they can be hard to read (ref: http://codex.wordpress.org/WordPress_Coding_Standards#Yoda_Conditions)
 * Fix typo in query args

git-svn-id: https://core.svn.wordpress.org/trunk@17847 1a063a9b-81f0-0310-95a4-ce76da25c4cd