Merge pull request #2373 from edx/sarina/fix-course-authorization

Force unique course_id for bulk email authorization
Merge pull request #2375 from edx/adam/lms2118-bulk-email-unicode-errors

Adam/lms2118 bulk email unicode errors
Merge pull request #2245 from edx/giulio/instructor-forum-role-info

Note to Instructors on Regular & Beta Dashboard
Fix link to testing document.
Remove periods from error messages
/create_account: use proper HTTP status codes

Use status code 400 when there is a validation error in creating an account.
Merge pull request #2372 from edx/db/create-account-proper-status-code

Use status code 400 when there is a validation error in creating an account
add ability to have an optional password policy enforcement on account creation
add aws.py hooks
Add myself as contributor.
Merge pull request #2312 from edx/cdodge/password-complexity-policy

Optional Password Policy enforcement
Merge pull request #2379 from edx/chrisndodge/lock-accounts-after-failed-attempts

Add AWS.py configuration hooks to tie in login failure lockout parameters
Unicode changes to support QRF

fixing unit tests

fixing merge error

fixing xqueue submission issue with unicode url (trial 0.1)

fixing fotmats as commented upon

removing yaml file language selection

Unicode changes to support QRF

removed unnecessary pass in modulestore/init.py

fixing merge error

fixing fotmats as commented upon

removing yaml file language selection

fixing pep8 violations

- fixing pylint violations

pylint violation

fixing line spaces and formats

ignore pylint E1101

remove empty line

fixing pylint violations

 pep8 violations

bulk mail unicode/decode

fix migration error

fix pep8 just to push again

more unicode/decode
Final changes to comments and error messages.
Merge pull request #2311 from edx/will/cache-test-db-migrations

Cache databases to speed up acceptance tests
wire in env settings into aws.py
Fix pathological po growth
Added more descriptive page titles.
Merge pull request #2343 from edx/dstgermain/a11y-page-titles

Added more descriptive page titles.
fix main.html template -- <title> was eating everything
This script and meta tag shouldn't be inside the title.