jguitar/cs169.1x-saas — pull request #1 by kitaindia (2013-01-21 09:04:15+00:00)
Title: Fix bugs HW 1-6

It seems this code can't pass 2 tests...

should not error on non-sensical cases of enumerables, like hashes
should still work for the case of non-array enumerables that do make sense, like iterators (valid palindrome)

ex) ('a'..'a').palindrome?

Range#reverse cannot use.