Stop page extending out of viewport width by 40px

Currently the .container and .wrapper-footer elements are set to 100%,
and also have horizontal padding added to them. This results in a total
width of greater than the full width of the viewport; This causing the
browser to scroll horizonally into empty space, regardless of how wide
the viewport is.

I had added the `box-sizing: border-box` to these elements in order to
resolve this.

Cheers,
Louis
Add Louis Pilfold to AUTHORS
First pass at improving OLX docs
Mark Edits
Fix components index
added tools to components index
Change Log Update
Use box-sizing SCSS mixin rather than property
Initial pass at LMS and Studio RTL
LMS RTL fixes
switching RTL on the fly - added bi-app for sass compiling
Elegant rtl/ltr css switch, LMS RTL fixes, language aware @cache_if_anonymous
cleanup and response to PR review
Merge pull request #2682 from edx/frances/experiments/rtl

RTL platform support
Removed highlight underscore, which was breaking on RTD
Merge pull request #5620 from edx/markhoeber-devdoc-fix

Devdoc fix
Merge pull request #5525 from edx/pmitros/olx-doc-fixups

First pass at improving OLX docs
Merge pull request #5563 from lpil/master

Stop page extending out of viewport width by 40px
add Solano CI.
Merge PR#3. Solano: Add post worker hook for copying artifacts.