Revert "Merge pull request #804 from edx/valera/lti_module"

This reverts commit 2894b21c, reversing
changes made to 34d0fe15.

LTI module with tests

User verification / validated certificates feature

This reverts commit ef4b7b9b.

Rewriting expect() calls to use Jasmine jQuery event spies. Making individual
it() tests independent.

Now the introductory text is of a more serious nature.