* Fix collapsed white-space above pagination links
* Improve `page` and `archive` layout
- Center main content on page
- Harmonize sidebar columns to be equal widths
Fixes#1155
* Update CHANGELOG and history
* Position and align right sidebar with the top of the main content
* Offset right sidebar at `$large` viewport
* Add TOC bottom include test post
* Add right sidebar styling edits to documentation site
* Add TOC bottom include test post
Most of Susy's mixins have been deprecated, `@include container()`, `@include full()`, `@include span()`, `@include prefix()`, `@include suffix()`, `@include gallery()`, etc.
Fixes#1114
Viewing overflowing sidebar content requires scrolling the entire page which is annoying and causes the reader to lose their place.
Use CSS `calc` to approximate height of the sidebar (`100vh` - height of the masthead) and apply `overflow-y: auto` to add vertical scrollbars when needed.
Fixes#706
