Add a test for Django-based file uploads to problems.
Rename BlockUsageLocator's block_id field from usage_id
usage_id implies self-sufficiency. The block_id is relative to its structure.
Update to the latest version of lettuce
Add information to xblocks about when they complete initialization that's visible in javascript
Studio: updating font face imports
* since Sass can now process @import rules
* to simplify the number of external calls
* maintains the http/https agnostic work
* removes unused Bree Serif font face
LMS: changing Open Sans font reference
* uses Google Web Fonts reference rather than local files
* removes unused local font files
* adds in semi-bold weight support
script bombs if comments include unicode
Rebalance acceptance test shards
Added Selenium page objects for LMS and studio
Properly format errors/warnings.

STUD-1063
Set review timeframe more appropriately in contributing docs
cr comments
Add baseview(extended from backbone view), which can further extended by other views + Add fucntion to modify iframe and embed tags + add related tests
STUD-823
Merge pull request #2002 from edx/will/rebalance-shards

Rebalance acceptance test shards
Merge pull request #1971 from edx/will/selenium-pages

Added Selenium page objects for LMS and studio
Removed logme module. Using console.log() instead.

Removing "logme" from comments.

BLD-608
Cleanup courseware acceptance tests
added detail about tolerance for numerical problems

Add minor detail based on feedbback in training class -- use word
tolerance for margin of error, as that's what people searched on.  add
example for both percentage and numerical tolerance
Merge pull request #1749 from zubair-arbi/zub/bugfix/std823-addbaseview

Added baseview(extended from backbone view), which can further extended ...
Merge pull request #1986 from edx/valera/move_logme_module_separate_file

Moving logme Require JS module out of individual XModules/Capa problems.