Update wording per Doc
When s3fs cannot be accessed replaced with osfs
reorg of the receipt page header to match rest of the flow; removed cart-list class from receipt page wrapper
Remove proxying of resources_fs, and add a unittest that exposes the problem

[PLAT-191]
courseware header bar should not overflow shopping cart button TNL-722
Wrap ModuleSystem and DescriptorSystem into a single object, to continue holding up the XModule house of cards

[PLAT-191]
fix the link in the button on the receipt page
Correct script exit status
TE-567
Merge pull request #5783 from cpennington/proxy-through-module-system-to-descriptor-system

Fix PLAT-191
Merge pull request #5291 from fmyzjs/s3_storgae

When s3fs cannot be accessed replaced with osfs
Merge pull request #5750 from edx/frances/fix/receipt-layout-fixes

Verified Receipt page layout fixes
Merge pull request #5806 from edx/ammar/te-567

Correct script exit status
Merge pull request #5794 from edx/adam/shorten-title-width

courseware header bar should not overflow shopping cart button TNL-722
Fix lettuce css_fill method for devstack
Revert "Fix lettuce css_fill method for devstack"

This reverts commit 471abb8c28dc166653b1e032a1b68bdf79a5077e.
Merge pull request #5726 from edx/sarina/fix-wording-reset-button

Update wording per Doc
Merge pull request #5804 from edx/cdodge/fix-receipt-link

fix the link in the button on the receipt page