Revert to older version of TinyMCE.

We had trouble with Cloudfront/hashed files and need more time
to investigate.
This reverts commit e8f53ac9dc6d8a1d9928787635c7c5f7e409a9ec.
Merge pull request #3067 from edx/christina/revert_tinymce

Revert to older version of TinyMCE.
Merge pull request #3070 from edx/adam/middleware

wiki middleware fix (LMS-2461)
Concept added to Studio advanced components
Skip collectstatic when falling through from rake assets:coffee
Release notes 3/26/14

DOC-196
Merge pull request #3069 from edx/markhoeber/documentation/doc-196

Markhoeber/documentation/doc 196

Release notes for 3/27/14
Merge pull request #3082 from edx/db/rake-coffee-to-paver-skip-collect

Skip collectstatic when falling through from rake assets:coffee
Update testing.md file.

How to run Python tests for stub servers.
Merge branch 'release'
Fix failing tender.
Merge pull request #3092 from edx/valera/fix_tender

Fix failing tender.
Add an option to prevent multiple logins of the same user.
Merge pull request #2793 from edx/dcs/mat-17

Add an option to prevent multiple logins of the same user.
Fix broken test due to refactoring.
Initial implementation for api_manager app