swirldev/swirl_courses — pull request #3 by WilCrofter (2014-03-25 17:51:03+00:00)
Title: Custom test, ANY_of_exprs(...), and misc fixes.

Added custom test, ANY_of_exprs(...), to Missing Values lesson.
* Returns TRUE if e$expr matches any of the expressions given (as characters).
* Applied as ANY_of_exprs('x*3', '3*x')

Updated lesson types to Coursera.
Updated versions to 2.2.0.
Filled in one author field.