Fully disabling spelling and grammar checkings for basic check.

Ease would allow a number of keyboard mashing strings to pass spell check, but would fail a large number of submissions that were properly written Chinese.  Ease spelling and grammar check relies on a set of ascii characters, and will likely fail a large number of unicode submissions. Until spelling and grammar can properly handle multiple languages, or identify languages for each submission, it should be disabled so non-English courses may pass Basic Check.
Remove bad unit test
Adding a unicode test and updating parens
Django management command allow skipped submissions to peer grade.
ORA-293
Merge pull request #154 from edx/rc/2013-12-20

Rc/2013 12 20
Merge branch 'release' back into master.
Merge pull request #160 from edx/waheed/ora293-skipped-instructor-grades-to-get-peer-graded

Django management command allow skipped submissions to peer grade.