layout cleanup on LMS PDF Textbook viewer
adjusted the LMS PDF textbook zoom elements positioning
add export_all_courses management script to cms
fix two typos in export scripts
add extra modulestore() argument to export to make it export drafts also
add extra modulestore() argument to single export script
Added documentation to new acceptance test features and techniques
vagrant: Always mount `node_modules` folder after Vagrant NFS mount
tracking in idashboard should only log json-serializable objects
use unicode instead of str for casting track.views args in idashboard
Add a 'string literal' serialization method and use it in the lambda function mapping table when the value to xml serialize is of basestring type. Also a couple of drive-by pep8 fixes.
add new tests for the string literal serialization
fix up some of the test courses which had hardcoded that quot; escaping
Seems like the Edit/QA links in LMS are triggered by a ENABLE_LMS_MIGRATION feature flag. So when running as mongo-backed, set that to False
use better syntax for asserting that exception is thrown
raise a more appropriate Exception
Merge pull request #383 from edx/jonahstanley/add-test-documentation

Added documentation to new acceptance test features and techniques
Merge pull request #384 from antoviaque/vagrant-mount

vagrant: Always mount `node_modules` folder after Vagrant NFS mount
change serialize_field to check for type. If value is a string, simply return that, otherwise do a json.dumps
Studio i18n