Add explanation and small optimizations to languagetest
Release Notes - Sept 25, 2014
Added test for email activation and confirmation
Merge pull request #5378 from edx/zoldak/look-into-languagetest

Add explanation and small optimizations to LanguageTest
Merge pull request #5387 from edx/will/account-and-profile-more-tests

Added test for email activation and confirmation
Merge pull request #5374 from edx/markhoeber-documentaton-doc995

Release Notes - Sept 25, 2014
Wrap get_item in bulk_operations to limit the number of queries for course structure.

[LMS-11402]