styling for recursive xblock rendering structure to be used in the container page, pulling from general xblock styles in a separate file.

updated container header styling and exposed sidebar back to its location. includes some javascript to render tooltips on overflowed text headers

All forward facing wording changed to Export to Git
Export to git functions removed from management command and put in common file
Additional error checking and documentation improvements
Nitpicks and other minor fixes

Added tests
Converted scripts to django commands
Removed advanced module requirement
Generalized to platform
Switched to subprocess for shell commands
Beefed up resiliency and error checking.
Refactored since #1910 removed get_location_and_verify_access
Added settings to aws for export directory and reworked test setup and teardown
Several review based fixes
Added line to Changelog
Changed URL handler to be accepting and moved git bare repo inside of test_root/data
Added exception logging to help trace issues
Added output in exception logging
Made the branch to commit to explicit instead of implicit
Skipping git identity test on condition of global configuration set

UX-381

This reverts commit b8da1c5b.

added back in component header visual separation from component rendering block, making clear the display name for each component is not rendered to students

[LMS-1421][LMS-1517]

Make XBlock client-side runtimes proper classes, so that handlerUrl can
be defined in a per-runtime way, and we can have multiple runtimes on a
single page.

[LMS-1630][LMS-1421][LMS-1517]

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.

change code-side "Not Graded" to "notgraded"

visual fix hides component action header when unit is in public mode as editing tools should not be acessible

adjusted unit_spec.js to reflect new HTML structure, and corrected screenreader label for delete button

visual styling changes to components and static pages in order to use updated icon button styling for duplicate and delete actions

STUD-1186

STUD-1136

Added sorting to the new pagination logic for STUD-995.

These changes implement STUD-813. The commit consists of the
following logical changes:
 - a REST API has been implemented for a course's assets
 - the page itself now fetches the assets client-side
 - the Backbone.Paginator library is used to support pagination
 - the AssetCollection has been refactored to extend
   Backbone.Paginator.requestPager so that it can be paged
 - an abstract PagingView class has been added to generalize
   the communication with a paging REST API
 - the AssetsView has been reimplemented to extend PagingView
 - two new child views have been added:
   - PagingHeader: the paging controls above the list of assets
   - PagingFooter: the paging controls below the assets

* provides new .scss file for developers to add temporary/in-progress Sass for further refactor/polish
* cleans up note/import order in shame and application Sass files

STUD-988

STUD-988

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

* 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