Update gems

Update vendor files
- Drop IE8 polyfill scripts

Add white space to improve code readability

Remove locale hash to shorten Liquid variable names

Add support for localizing UI text with a _data file

Add follow links to footer
- Close #205

Merge branch 'feature/visual-refresh' of https://github.com/mmistakes/minimal-mistakes into feature/visual-refresh

Merge branch 'feature/pagination' into develop

Paginate posts for home page
- Configurejekyll-paginate
- Modify home page to include paginator loop
- Add pagination include and basic styling
- Add " - page #" to <title></tile> for SEO benefits

Merge branch 'feature/pagination' of https://github.com/mmistakes/minimal-mistakes into feature/pagination

Merge branch 'feature/more-sample-posts' into develop

Disable author sidebar

Add author sidebar disabled and custom sidebar content sample posts

Merge branch 'feature/refactor-tasks' into develop

Try to get Linguist to ignore vendor files

Minor edits to Gulpfile

Replace Grunt tasks with Gulp

Alphabetize

Merge branch 'feature/refactor-tasks' of https://github.com/mmistakes/minimal-mistakes into feature/refactor-tasks

Merge branch 'feature/refactor-includes-layouts' into develop