There's no need to display a traceback for every failed content load,
the comment before the log line even says so.

The exceptions shown before tests are run are because of the eager
initialization of the modulestores.  They don't need to be initialized
then, that just speeds the responsiveness of servers.  Putting off the
initialization means they get inited as needed, and the log lines get

New XML infrastructure for XBlocks

We aren't ready to use XBlock.load_class, there are duplicate entry point names, and simply choosing the first one leads to unpredictability.

All video controls have a full outline when receiving focus

make ENABLE_SHOPPING_CART truly optional

course_about was throwing 500s if ENABLE_SHOPPING_CART=False

Fix course enrollment count in instructor dashboard

Add .noseids to .gitignore, but first organize it.

Fix AN-115

First caption does not display outline on initial mouseover.

Streamling, test, and fix issues with image uploading

old pr 271 comment fixups

Clean up open ended problems view and fix error.

Streamline and test uploading ... remove requirement that uploads be images, can now upload any file.

Move nose arguments around so that we can run tests with manage.py

Move init to top of class
Change asserts to more meaningful exception types
Refactor hard-to-read fn

Upgrading to 1.4.8

Disables the previous/next arrows on pdf books on the first/last pages

Added setting to disable 'find courses' links

Move Pearson courseware imports to function level.

An assortment of small OE changes, both for ICE and standard

- Changed save OE message text
- Fix ICE legend positioning and content
- Add space to "offensive" checkbox
- Change tracker variable in undo to correct one

Pull XModule attributes out into a mixin that can be applied to xblocks

Adding Pillow jpeg and tiff system libs

update discussion forum doc