Support extensions with multiple parts (i.e. `en.md`)#1123

Merged

erquhart merged 3 commits intomasterfrom multi-extension

Feb 27, 2018

Commits on Feb 20, 2018

Support extensions with multiple parts (i.e. en.md)
tech4him1
committed

Commits on Feb 21, 2018

Strip entire extension from slug, not just last extension.
tech4him1
committed

Commits on Feb 27, 2018

Clean leading periods from extensions.
tech4him1
committed