v1.1.28 release

Fixes #121

v1.1.27 release

Fixes #120

v1.1.26 release

Fixes #115

v1.1.25 release

Merge pull request #112 from cipherboy/checkbox-space

Insert space after task-list checkboxes

v1.1.24 release

Fixes #104 : Invalid precending character breaks emphasis

v1.1.23 releae

Fixes #103

v1.1.22 release

Fixes #94

v1.1.21 release

Merge pull request #88 from tangiel/apostrophe

typographer: add basic support for apostrophes

v1.1.20 release

Merge pull request #84 from Kissaki/patch-1

Link to CommonMark website in README.md

v1.1.19 release

Fixes #81